81551480

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{229}}^1\times {\mathrm{307}}^1$

素因数の和:576

約数の個数: 64

約数和(自身を含む): 191268000

約数和(自身を除く): 109716520

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 229, 232, 290, 307, 458, 580, 614, 916, 1145, 1160, 1228, 1535, 1832, 2290, 2456, 3070, 4580, 6140, 6641, 8903, 9160, 12280, 13282, 17806, 26564, 33205, 35612, 44515, 53128, 66410, 70303, 71224, 89030, 132820, 140606, 178060, 265640, 281212, 351515, 356120, 562424, 703030, 1406060, 2038787, 2812120, 4077574, 8155148, 10193935, 16310296, 20387870, 40775740, 81551480]

約数ペア:

[(1, 81551480), (2, 40775740), (4, 20387870), (5, 16310296), (8, 10193935), (10, 8155148), (20, 4077574), (29, 2812120), (40, 2038787), (58, 1406060), (116, 703030), (145, 562424), (229, 356120), (232, 351515), (290, 281212), (307, 265640), (458, 178060), (580, 140606), (614, 132820), (916, 89030), (1145, 71224), (1160, 70303), (1228, 66410), (1535, 53128), (1832, 44515), (2290, 35612), (2456, 33205), (3070, 26564), (4580, 17806), (6140, 13282), (6641, 12280), (8903, 9160)]