55496920

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{2663}}^1$

素因数の和:3195

約数の個数: 32

約数和(自身を含む): 125154720

約数和(自身を除く): 69657800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 1042, 2084, 2605, 2663, 4168, 5210, 5326, 10420, 10652, 13315, 20840, 21304, 26630, 53260, 106520, 1387423, 2774846, 5549692, 6937115, 11099384, 13874230, 27748460, 55496920]

約数ペア:

[(1, 55496920), (2, 27748460), (4, 13874230), (5, 11099384), (8, 6937115), (10, 5549692), (20, 2774846), (40, 1387423), (521, 106520), (1042, 53260), (2084, 26630), (2605, 21304), (2663, 20840), (4168, 13315), (5210, 10652), (5326, 10420)]