20364848

素因数分解:

$2^4\times 7^1\times {\mathrm{349}}^1\times {\mathrm{521}}^1$

素因数の和:885

約数の個数: 40

約数和(自身を含む): 45309600

約数和(自身を除く): 24944752

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 349, 521, 698, 1042, 1396, 2084, 2443, 2792, 3647, 4168, 4886, 5584, 7294, 8336, 9772, 14588, 19544, 29176, 39088, 58352, 181829, 363658, 727316, 1272803, 1454632, 2545606, 2909264, 5091212, 10182424, 20364848]

約数ペア:

[(1, 20364848), (2, 10182424), (4, 5091212), (7, 2909264), (8, 2545606), (14, 1454632), (16, 1272803), (28, 727316), (56, 363658), (112, 181829), (349, 58352), (521, 39088), (698, 29176), (1042, 19544), (1396, 14588), (2084, 9772), (2443, 8336), (2792, 7294), (3647, 5584), (4168, 4886)]