64821160

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{67}}^2$

素因数の和:183

約数の個数: 72

約数和(自身を含む): 156259530

約数和(自身を除く): 91438370

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 67, 76, 95, 134, 152, 190, 268, 335, 361, 380, 536, 670, 722, 760, 1273, 1340, 1444, 1805, 2546, 2680, 2888, 3610, 4489, 5092, 6365, 7220, 8978, 10184, 12730, 14440, 17956, 22445, 24187, 25460, 35912, 44890, 48374, 50920, 85291, 89780, 96748, 120935, 170582, 179560, 193496, 241870, 341164, 426455, 483740, 682328, 852910, 967480, 1620529, 1705820, 3241058, 3411640, 6482116, 8102645, 12964232, 16205290, 32410580, 64821160]

約数ペア:

[(1, 64821160), (2, 32410580), (4, 16205290), (5, 12964232), (8, 8102645), (10, 6482116), (19, 3411640), (20, 3241058), (38, 1705820), (40, 1620529), (67, 967480), (76, 852910), (95, 682328), (134, 483740), (152, 426455), (190, 341164), (268, 241870), (335, 193496), (361, 179560), (380, 170582), (536, 120935), (670, 96748), (722, 89780), (760, 85291), (1273, 50920), (1340, 48374), (1444, 44890), (1805, 35912), (2546, 25460), (2680, 24187), (2888, 22445), (3610, 17956), (4489, 14440), (5092, 12730), (6365, 10184), (7220, 8978)]