30631280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{223}}^1$

素因数の和:354

約数の個数: 80

約数和(自身を含む): 76495104

約数和(自身を除く): 45863824

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 101, 136, 170, 202, 223, 272, 340, 404, 446, 505, 680, 808, 892, 1010, 1115, 1360, 1616, 1717, 1784, 2020, 2230, 3434, 3568, 3791, 4040, 4460, 6868, 7582, 8080, 8585, 8920, 13736, 15164, 17170, 17840, 18955, 22523, 27472, 30328, 34340, 37910, 45046, 60656, 68680, 75820, 90092, 112615, 137360, 151640, 180184, 225230, 303280, 360368, 382891, 450460, 765782, 900920, 1531564, 1801840, 1914455, 3063128, 3828910, 6126256, 7657820, 15315640, 30631280]

約数ペア:

[(1, 30631280), (2, 15315640), (4, 7657820), (5, 6126256), (8, 3828910), (10, 3063128), (16, 1914455), (17, 1801840), (20, 1531564), (34, 900920), (40, 765782), (68, 450460), (80, 382891), (85, 360368), (101, 303280), (136, 225230), (170, 180184), (202, 151640), (223, 137360), (272, 112615), (340, 90092), (404, 75820), (446, 68680), (505, 60656), (680, 45046), (808, 37910), (892, 34340), (1010, 30328), (1115, 27472), (1360, 22523), (1616, 18955), (1717, 17840), (1784, 17170), (2020, 15164), (2230, 13736), (3434, 8920), (3568, 8585), (3791, 8080), (4040, 7582), (4460, 6868)]