20779920

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:83

約数の個数: 360

約数和(自身を含む): 88208640

約数和(自身を除く): 67428720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 19, 20, 21, 24, 28, 30, 31, 35, 36, 38, 40, 42, 45, 48, 49, 56, 57, 60, 62, 63, 70, 72, 76, 80, 84, 90, 93, 95, 98, 105, 112, 114, 120, 124, 126, 133, 140, 144, 147, 152, 155, 168, 171, 180, 186, 190, 196, 210, 217, 228, 240, 245, 248, 252, 266, 279, 280, 285, 294, 304, 310, 315, 336, 342, 360, 372, 380, 392, 399, 420, 434, 441, 456, 465, 490, 496, 504, 532, 558, 560, 570, 588, 589, 620, 630, 651, 665, 684, 720, 735, 744, 760, 784, 798, 840, 855, 868, 882, 912, 930, 931, 980, 1008, 1064, 1085, 1116, 1140, 1176, 1178, 1197, 1240, 1260, 1302, 1330, 1368, 1395, 1470, 1488, 1519, 1520, 1596, 1680, 1710, 1736, 1764, 1767, 1860, 1862, 1953, 1960, 1995, 2128, 2170, 2205, 2232, 2280, 2352, 2356, 2394, 2480, 2520, 2604, 2660, 2736, 2790, 2793, 2940, 2945, 3038, 3192, 3255, 3420, 3472, 3528, 3534, 3720, 3724, 3906, 3920, 3990, 4123, 4340, 4410, 4464, 4557, 4560, 4655, 4712, 4788, 5040, 5208, 5301, 5320, 5580, 5586, 5880, 5890, 5985, 6076, 6384, 6510, 6840, 7056, 7068, 7440, 7448, 7595, 7812, 7980, 8246, 8379, 8680, 8820, 8835, 9114, 9310, 9424, 9576, 9765, 10416, 10602, 10640, 11160, 11172, 11760, 11780, 11970, 12152, 12369, 13020, 13671, 13680, 13965, 14136, 14896, 15190, 15624, 15960, 16492, 16758, 17360, 17640, 17670, 18228, 18620, 19152, 19530, 20615, 21204, 22320, 22344, 22785, 23560, 23940, 24304, 24738, 26040, 26505, 27342, 27930, 28272, 28861, 30380, 31248, 31920, 32984, 33516, 35280, 35340, 36456, 37107, 37240, 39060, 41230, 41895, 42408, 44688, 45570, 47120, 47880, 49476, 52080, 53010, 54684, 55860, 57722, 60760, 61845, 65968, 67032, 68355, 70680, 72912, 74214, 74480, 78120, 82460, 83790, 84816, 86583, 91140, 95760, 98952, 106020, 109368, 111720, 115444, 121520, 123690, 134064, 136710, 141360, 144305, 148428, 156240, 164920, 167580, 173166, 182280, 185535, 197904, 212040, 218736, 223440, 230888, 247380, 259749, 273420, 288610, 296856, 329840, 335160, 346332, 364560, 371070, 424080, 432915, 461776, 494760, 519498, 546840, 577220, 593712, 670320, 692664, 742140, 865830, 989520, 1038996, 1093680, 1154440, 1298745, 1385328, 1484280, 1731660, 2077992, 2308880, 2597490, 2968560, 3463320, 4155984, 5194980, 6926640, 10389960, 20779920]

約数ペア:

[(1, 20779920), (2, 10389960), (3, 6926640), (4, 5194980), (5, 4155984), (6, 3463320), (7, 2968560), (8, 2597490), (9, 2308880), (10, 2077992), (12, 1731660), (14, 1484280), (15, 1385328), (16, 1298745), (18, 1154440), (19, 1093680), (20, 1038996), (21, 989520), (24, 865830), (28, 742140), (30, 692664), (31, 670320), (35, 593712), (36, 577220), (38, 546840), (40, 519498), (42, 494760), (45, 461776), (48, 432915), (49, 424080), (56, 371070), (57, 364560), (60, 346332), (62, 335160), (63, 329840), (70, 296856), (72, 288610), (76, 273420), (80, 259749), (84, 247380), (90, 230888), (93, 223440), (95, 218736), (98, 212040), (105, 197904), (112, 185535), (114, 182280), (120, 173166), (124, 167580), (126, 164920), (133, 156240), (140, 148428), (144, 144305), (147, 141360), (152, 136710), (155, 134064), (168, 123690), (171, 121520), (180, 115444), (186, 111720), (190, 109368), (196, 106020), (210, 98952), (217, 95760), (228, 91140), (240, 86583), (245, 84816), (248, 83790), (252, 82460), (266, 78120), (279, 74480), (280, 74214), (285, 72912), (294, 70680), (304, 68355), (310, 67032), (315, 65968), (336, 61845), (342, 60760), (360, 57722), (372, 55860), (380, 54684), (392, 53010), (399, 52080), (420, 49476), (434, 47880), (441, 47120), (456, 45570), (465, 44688), (490, 42408), (496, 41895), (504, 41230), (532, 39060), (558, 37240), (560, 37107), (570, 36456), (588, 35340), (589, 35280), (620, 33516), (630, 32984), (651, 31920), (665, 31248), (684, 30380), (720, 28861), (735, 28272), (744, 27930), (760, 27342), (784, 26505), (798, 26040), (840, 24738), (855, 24304), (868, 23940), (882, 23560), (912, 22785), (930, 22344), (931, 22320), (980, 21204), (1008, 20615), (1064, 19530), (1085, 19152), (1116, 18620), (1140, 18228), (1176, 17670), (1178, 17640), (1197, 17360), (1240, 16758), (1260, 16492), (1302, 15960), (1330, 15624), (1368, 15190), (1395, 14896), (1470, 14136), (1488, 13965), (1519, 13680), (1520, 13671), (1596, 13020), (1680, 12369), (1710, 12152), (1736, 11970), (1764, 11780), (1767, 11760), (1860, 11172), (1862, 11160), (1953, 10640), (1960, 10602), (1995, 10416), (2128, 9765), (2170, 9576), (2205, 9424), (2232, 9310), (2280, 9114), (2352, 8835), (2356, 8820), (2394, 8680), (2480, 8379), (2520, 8246), (2604, 7980), (2660, 7812), (2736, 7595), (2790, 7448), (2793, 7440), (2940, 7068), (2945, 7056), (3038, 6840), (3192, 6510), (3255, 6384), (3420, 6076), (3472, 5985), (3528, 5890), (3534, 5880), (3720, 5586), (3724, 5580), (3906, 5320), (3920, 5301), (3990, 5208), (4123, 5040), (4340, 4788), (4410, 4712), (4464, 4655), (4557, 4560)]