64521975

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{97}}^1\times {\mathrm{181}}^1$

素因数の和:305

約数の個数: 72

約数和(自身を含む): 126064848

約数和(自身を除く): 61542873

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 75, 97, 105, 147, 175, 181, 245, 291, 485, 525, 543, 679, 735, 905, 1225, 1267, 1455, 2037, 2425, 2715, 3395, 3675, 3801, 4525, 4753, 6335, 7275, 8869, 10185, 13575, 14259, 16975, 17557, 19005, 23765, 26607, 31675, 44345, 50925, 52671, 71295, 87785, 95025, 118825, 122899, 133035, 221725, 263355, 356475, 368697, 438925, 614495, 665175, 860293, 1316775, 1843485, 2580879, 3072475, 4301465, 9217425, 12904395, 21507325, 64521975]

約数ペア:

[(1, 64521975), (3, 21507325), (5, 12904395), (7, 9217425), (15, 4301465), (21, 3072475), (25, 2580879), (35, 1843485), (49, 1316775), (75, 860293), (97, 665175), (105, 614495), (147, 438925), (175, 368697), (181, 356475), (245, 263355), (291, 221725), (485, 133035), (525, 122899), (543, 118825), (679, 95025), (735, 87785), (905, 71295), (1225, 52671), (1267, 50925), (1455, 44345), (2037, 31675), (2425, 26607), (2715, 23765), (3395, 19005), (3675, 17557), (3801, 16975), (4525, 14259), (4753, 13575), (6335, 10185), (7275, 8869)]