15315640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{223}}^1$

素因数の和:352

約数の個数: 64

約数和(自身を含む): 37013760

約数和(自身を除く): 21698120

約数列:

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

約数ペア:

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