15921760

素因数分解:

$2^5\times 5^1\times {\mathrm{191}}^1\times {\mathrm{521}}^1$

素因数の和:727

約数の個数: 48

約数和(自身を含む): 37884672

約数和(自身を除く): 21962912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 191, 382, 521, 764, 955, 1042, 1528, 1910, 2084, 2605, 3056, 3820, 4168, 5210, 6112, 7640, 8336, 10420, 15280, 16672, 20840, 30560, 41680, 83360, 99511, 199022, 398044, 497555, 796088, 995110, 1592176, 1990220, 3184352, 3980440, 7960880, 15921760]

約数ペア:

[(1, 15921760), (2, 7960880), (4, 3980440), (5, 3184352), (8, 1990220), (10, 1592176), (16, 995110), (20, 796088), (32, 497555), (40, 398044), (80, 199022), (160, 99511), (191, 83360), (382, 41680), (521, 30560), (764, 20840), (955, 16672), (1042, 15280), (1528, 10420), (1910, 8336), (2084, 7640), (2605, 6112), (3056, 5210), (3820, 4168)]