20091960

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1$

素因数の和:115

約数の個数: 288

約数和(自身を含む): 81628560

約数和(自身を除く): 61536600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 17, 18, 20, 21, 24, 28, 30, 34, 35, 36, 40, 42, 45, 49, 51, 56, 60, 63, 67, 68, 70, 72, 84, 85, 90, 98, 102, 105, 119, 120, 126, 134, 136, 140, 147, 153, 168, 170, 180, 196, 201, 204, 210, 238, 245, 252, 255, 268, 280, 294, 306, 315, 335, 340, 357, 360, 392, 402, 408, 420, 441, 469, 476, 490, 504, 510, 536, 588, 595, 603, 612, 630, 670, 680, 714, 735, 765, 804, 833, 840, 882, 938, 952, 980, 1005, 1020, 1071, 1139, 1176, 1190, 1206, 1224, 1260, 1340, 1407, 1428, 1470, 1530, 1608, 1666, 1764, 1785, 1876, 1960, 2010, 2040, 2142, 2205, 2278, 2345, 2380, 2412, 2499, 2520, 2680, 2814, 2856, 2940, 3015, 3060, 3283, 3332, 3417, 3528, 3570, 3752, 4020, 4165, 4221, 4284, 4410, 4556, 4690, 4760, 4824, 4998, 5355, 5628, 5695, 5880, 6030, 6120, 6566, 6664, 6834, 7035, 7140, 7497, 7973, 8040, 8330, 8442, 8568, 8820, 9112, 9380, 9849, 9996, 10251, 10710, 11256, 11390, 12060, 12495, 13132, 13668, 14070, 14280, 14994, 15946, 16415, 16660, 16884, 17085, 17640, 18760, 19698, 19992, 20502, 21105, 21420, 22780, 23919, 24120, 24990, 26264, 27336, 28140, 29547, 29988, 31892, 32830, 33320, 33768, 34170, 37485, 39396, 39865, 41004, 42210, 42840, 45560, 47838, 49245, 49980, 51255, 55811, 56280, 59094, 59976, 63784, 65660, 68340, 71757, 74970, 78792, 79730, 82008, 84420, 95676, 98490, 99960, 102510, 111622, 118188, 119595, 131320, 136680, 143514, 147735, 149940, 159460, 167433, 168840, 191352, 196980, 205020, 223244, 236376, 239190, 279055, 287028, 295470, 299880, 318920, 334866, 358785, 393960, 410040, 446488, 478380, 502299, 558110, 574056, 590940, 669732, 717570, 837165, 956760, 1004598, 1116220, 1181880, 1339464, 1435140, 1674330, 2009196, 2232440, 2511495, 2870280, 3348660, 4018392, 5022990, 6697320, 10045980, 20091960]

約数ペア:

[(1, 20091960), (2, 10045980), (3, 6697320), (4, 5022990), (5, 4018392), (6, 3348660), (7, 2870280), (8, 2511495), (9, 2232440), (10, 2009196), (12, 1674330), (14, 1435140), (15, 1339464), (17, 1181880), (18, 1116220), (20, 1004598), (21, 956760), (24, 837165), (28, 717570), (30, 669732), (34, 590940), (35, 574056), (36, 558110), (40, 502299), (42, 478380), (45, 446488), (49, 410040), (51, 393960), (56, 358785), (60, 334866), (63, 318920), (67, 299880), (68, 295470), (70, 287028), (72, 279055), (84, 239190), (85, 236376), (90, 223244), (98, 205020), (102, 196980), (105, 191352), (119, 168840), (120, 167433), (126, 159460), (134, 149940), (136, 147735), (140, 143514), (147, 136680), (153, 131320), (168, 119595), (170, 118188), (180, 111622), (196, 102510), (201, 99960), (204, 98490), (210, 95676), (238, 84420), (245, 82008), (252, 79730), (255, 78792), (268, 74970), (280, 71757), (294, 68340), (306, 65660), (315, 63784), (335, 59976), (340, 59094), (357, 56280), (360, 55811), (392, 51255), (402, 49980), (408, 49245), (420, 47838), (441, 45560), (469, 42840), (476, 42210), (490, 41004), (504, 39865), (510, 39396), (536, 37485), (588, 34170), (595, 33768), (603, 33320), (612, 32830), (630, 31892), (670, 29988), (680, 29547), (714, 28140), (735, 27336), (765, 26264), (804, 24990), (833, 24120), (840, 23919), (882, 22780), (938, 21420), (952, 21105), (980, 20502), (1005, 19992), (1020, 19698), (1071, 18760), (1139, 17640), (1176, 17085), (1190, 16884), (1206, 16660), (1224, 16415), (1260, 15946), (1340, 14994), (1407, 14280), (1428, 14070), (1470, 13668), (1530, 13132), (1608, 12495), (1666, 12060), (1764, 11390), (1785, 11256), (1876, 10710), (1960, 10251), (2010, 9996), (2040, 9849), (2142, 9380), (2205, 9112), (2278, 8820), (2345, 8568), (2380, 8442), (2412, 8330), (2499, 8040), (2520, 7973), (2680, 7497), (2814, 7140), (2856, 7035), (2940, 6834), (3015, 6664), (3060, 6566), (3283, 6120), (3332, 6030), (3417, 5880), (3528, 5695), (3570, 5628), (3752, 5355), (4020, 4998), (4165, 4824), (4221, 4760), (4284, 4690), (4410, 4556)]