16821840

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:90

約数の個数: 320

約数和(自身を含む): 68567040

約数和(自身を除く): 51745200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 17, 19, 20, 21, 24, 28, 30, 31, 34, 35, 38, 40, 42, 48, 51, 56, 57, 60, 62, 68, 70, 76, 80, 84, 85, 93, 95, 102, 105, 112, 114, 119, 120, 124, 133, 136, 140, 152, 155, 168, 170, 186, 190, 204, 210, 217, 228, 238, 240, 248, 255, 266, 272, 280, 285, 304, 310, 323, 336, 340, 357, 372, 380, 399, 408, 420, 434, 456, 465, 476, 496, 510, 527, 532, 560, 570, 589, 595, 620, 646, 651, 665, 680, 714, 744, 760, 798, 816, 840, 868, 912, 930, 952, 969, 1020, 1054, 1064, 1085, 1140, 1178, 1190, 1240, 1292, 1302, 1330, 1360, 1428, 1488, 1520, 1581, 1596, 1615, 1680, 1736, 1767, 1785, 1860, 1904, 1938, 1995, 2040, 2108, 2128, 2170, 2261, 2280, 2356, 2380, 2480, 2584, 2604, 2635, 2660, 2856, 2945, 3162, 3192, 3230, 3255, 3472, 3534, 3570, 3689, 3720, 3876, 3990, 4080, 4123, 4216, 4340, 4522, 4560, 4712, 4760, 4845, 5168, 5208, 5270, 5320, 5712, 5890, 6324, 6384, 6460, 6510, 6783, 7068, 7140, 7378, 7440, 7752, 7905, 7980, 8246, 8432, 8680, 8835, 9044, 9424, 9520, 9690, 10013, 10416, 10540, 10640, 11067, 11305, 11780, 12369, 12648, 12920, 13020, 13566, 14136, 14280, 14756, 15504, 15810, 15960, 16492, 17360, 17670, 18088, 18445, 19380, 20026, 20615, 21080, 22134, 22610, 23560, 24738, 25296, 25840, 26040, 27132, 28272, 28560, 29512, 30039, 31620, 31920, 32984, 33915, 35340, 36176, 36890, 38760, 40052, 41230, 42160, 44268, 45220, 47120, 49476, 50065, 52080, 54264, 55335, 59024, 60078, 61845, 63240, 65968, 67830, 70091, 70680, 73780, 77520, 80104, 82460, 88536, 90440, 98952, 100130, 108528, 110670, 120156, 123690, 126480, 135660, 140182, 141360, 147560, 150195, 160208, 164920, 177072, 180880, 197904, 200260, 210273, 221340, 240312, 247380, 271320, 280364, 295120, 300390, 329840, 350455, 400520, 420546, 442680, 480624, 494760, 542640, 560728, 600780, 700910, 801040, 841092, 885360, 989520, 1051365, 1121456, 1201560, 1401820, 1682184, 2102730, 2403120, 2803640, 3364368, 4205460, 5607280, 8410920, 16821840]

約数ペア:

[(1, 16821840), (2, 8410920), (3, 5607280), (4, 4205460), (5, 3364368), (6, 2803640), (7, 2403120), (8, 2102730), (10, 1682184), (12, 1401820), (14, 1201560), (15, 1121456), (16, 1051365), (17, 989520), (19, 885360), (20, 841092), (21, 801040), (24, 700910), (28, 600780), (30, 560728), (31, 542640), (34, 494760), (35, 480624), (38, 442680), (40, 420546), (42, 400520), (48, 350455), (51, 329840), (56, 300390), (57, 295120), (60, 280364), (62, 271320), (68, 247380), (70, 240312), (76, 221340), (80, 210273), (84, 200260), (85, 197904), (93, 180880), (95, 177072), (102, 164920), (105, 160208), (112, 150195), (114, 147560), (119, 141360), (120, 140182), (124, 135660), (133, 126480), (136, 123690), (140, 120156), (152, 110670), (155, 108528), (168, 100130), (170, 98952), (186, 90440), (190, 88536), (204, 82460), (210, 80104), (217, 77520), (228, 73780), (238, 70680), (240, 70091), (248, 67830), (255, 65968), (266, 63240), (272, 61845), (280, 60078), (285, 59024), (304, 55335), (310, 54264), (323, 52080), (336, 50065), (340, 49476), (357, 47120), (372, 45220), (380, 44268), (399, 42160), (408, 41230), (420, 40052), (434, 38760), (456, 36890), (465, 36176), (476, 35340), (496, 33915), (510, 32984), (527, 31920), (532, 31620), (560, 30039), (570, 29512), (589, 28560), (595, 28272), (620, 27132), (646, 26040), (651, 25840), (665, 25296), (680, 24738), (714, 23560), (744, 22610), (760, 22134), (798, 21080), (816, 20615), (840, 20026), (868, 19380), (912, 18445), (930, 18088), (952, 17670), (969, 17360), (1020, 16492), (1054, 15960), (1064, 15810), (1085, 15504), (1140, 14756), (1178, 14280), (1190, 14136), (1240, 13566), (1292, 13020), (1302, 12920), (1330, 12648), (1360, 12369), (1428, 11780), (1488, 11305), (1520, 11067), (1581, 10640), (1596, 10540), (1615, 10416), (1680, 10013), (1736, 9690), (1767, 9520), (1785, 9424), (1860, 9044), (1904, 8835), (1938, 8680), (1995, 8432), (2040, 8246), (2108, 7980), (2128, 7905), (2170, 7752), (2261, 7440), (2280, 7378), (2356, 7140), (2380, 7068), (2480, 6783), (2584, 6510), (2604, 6460), (2635, 6384), (2660, 6324), (2856, 5890), (2945, 5712), (3162, 5320), (3192, 5270), (3230, 5208), (3255, 5168), (3472, 4845), (3534, 4760), (3570, 4712), (3689, 4560), (3720, 4522), (3876, 4340), (3990, 4216), (4080, 4123)]