8307640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1$

素因数の和:340

約数の個数: 64

約数和(自身を含む): 20736000

約数和(自身を除く): 12428360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 79, 88, 110, 158, 220, 239, 316, 395, 440, 478, 632, 790, 869, 956, 1195, 1580, 1738, 1912, 2390, 2629, 3160, 3476, 4345, 4780, 5258, 6952, 8690, 9560, 10516, 13145, 17380, 18881, 21032, 26290, 34760, 37762, 52580, 75524, 94405, 105160, 151048, 188810, 207691, 377620, 415382, 755240, 830764, 1038455, 1661528, 2076910, 4153820, 8307640]

約数ペア:

[(1, 8307640), (2, 4153820), (4, 2076910), (5, 1661528), (8, 1038455), (10, 830764), (11, 755240), (20, 415382), (22, 377620), (40, 207691), (44, 188810), (55, 151048), (79, 105160), (88, 94405), (110, 75524), (158, 52580), (220, 37762), (239, 34760), (316, 26290), (395, 21032), (440, 18881), (478, 17380), (632, 13145), (790, 10516), (869, 9560), (956, 8690), (1195, 6952), (1580, 5258), (1738, 4780), (1912, 4345), (2390, 3476), (2629, 3160)]