56538920

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{2713}}^1$

素因数の和:3245

約数の個数: 32

約数和(自身を含む): 127503720

約数和(自身を除く): 70964800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 1042, 2084, 2605, 2713, 4168, 5210, 5426, 10420, 10852, 13565, 20840, 21704, 27130, 54260, 108520, 1413473, 2826946, 5653892, 7067365, 11307784, 14134730, 28269460, 56538920]

約数ペア:

[(1, 56538920), (2, 28269460), (4, 14134730), (5, 11307784), (8, 7067365), (10, 5653892), (20, 2826946), (40, 1413473), (521, 108520), (1042, 54260), (2084, 27130), (2605, 21704), (2713, 20840), (4168, 13565), (5210, 10852), (5426, 10420)]