81073680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{641}}^1$

素因数の和:705

約数の個数: 160

約数和(自身を含む): 275125248

約数和(自身を除く): 194051568

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 31, 34, 40, 48, 51, 60, 62, 68, 80, 85, 93, 102, 120, 124, 136, 155, 170, 186, 204, 240, 248, 255, 272, 310, 340, 372, 408, 465, 496, 510, 527, 620, 641, 680, 744, 816, 930, 1020, 1054, 1240, 1282, 1360, 1488, 1581, 1860, 1923, 2040, 2108, 2480, 2564, 2635, 3162, 3205, 3720, 3846, 4080, 4216, 5128, 5270, 6324, 6410, 7440, 7692, 7905, 8432, 9615, 10256, 10540, 10897, 12648, 12820, 15384, 15810, 19230, 19871, 21080, 21794, 25296, 25640, 30768, 31620, 32691, 38460, 39742, 42160, 43588, 51280, 54485, 59613, 63240, 65382, 76920, 79484, 87176, 99355, 108970, 119226, 126480, 130764, 153840, 158968, 163455, 174352, 198710, 217940, 238452, 261528, 298065, 317936, 326910, 337807, 397420, 435880, 476904, 523056, 596130, 653820, 675614, 794840, 871760, 953808, 1013421, 1192260, 1307640, 1351228, 1589680, 1689035, 2026842, 2384520, 2615280, 2702456, 3378070, 4053684, 4769040, 5067105, 5404912, 6756140, 8107368, 10134210, 13512280, 16214736, 20268420, 27024560, 40536840, 81073680]

約数ペア:

[(1, 81073680), (2, 40536840), (3, 27024560), (4, 20268420), (5, 16214736), (6, 13512280), (8, 10134210), (10, 8107368), (12, 6756140), (15, 5404912), (16, 5067105), (17, 4769040), (20, 4053684), (24, 3378070), (30, 2702456), (31, 2615280), (34, 2384520), (40, 2026842), (48, 1689035), (51, 1589680), (60, 1351228), (62, 1307640), (68, 1192260), (80, 1013421), (85, 953808), (93, 871760), (102, 794840), (120, 675614), (124, 653820), (136, 596130), (155, 523056), (170, 476904), (186, 435880), (204, 397420), (240, 337807), (248, 326910), (255, 317936), (272, 298065), (310, 261528), (340, 238452), (372, 217940), (408, 198710), (465, 174352), (496, 163455), (510, 158968), (527, 153840), (620, 130764), (641, 126480), (680, 119226), (744, 108970), (816, 99355), (930, 87176), (1020, 79484), (1054, 76920), (1240, 65382), (1282, 63240), (1360, 59613), (1488, 54485), (1581, 51280), (1860, 43588), (1923, 42160), (2040, 39742), (2108, 38460), (2480, 32691), (2564, 31620), (2635, 30768), (3162, 25640), (3205, 25296), (3720, 21794), (3846, 21080), (4080, 19871), (4216, 19230), (5128, 15810), (5270, 15384), (6324, 12820), (6410, 12648), (7440, 10897), (7692, 10540), (7905, 10256), (8432, 9615)]