66403928

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{443}}^1\times {\mathrm{457}}^1$

素因数の和:947

約数の個数: 32

約数和(自身を含む): 128111760

約数和(自身を除く): 61707832

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 443, 457, 886, 914, 1772, 1828, 3544, 3656, 18163, 18737, 36326, 37474, 72652, 74948, 145304, 149896, 202451, 404902, 809804, 1619608, 8300491, 16600982, 33201964, 66403928]

約数ペア:

[(1, 66403928), (2, 33201964), (4, 16600982), (8, 8300491), (41, 1619608), (82, 809804), (164, 404902), (328, 202451), (443, 149896), (457, 145304), (886, 74948), (914, 72652), (1772, 37474), (1828, 36326), (3544, 18737), (3656, 18163)]