19370920

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2971}}^1$

素因数の和:3145

約数の個数: 32

約数和(自身を含む): 43866720

約数和(自身を除く): 24495800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 2971, 3260, 5942, 6520, 11884, 14855, 23768, 29710, 59420, 118840, 484273, 968546, 1937092, 2421365, 3874184, 4842730, 9685460, 19370920]

約数ペア:

[(1, 19370920), (2, 9685460), (4, 4842730), (5, 3874184), (8, 2421365), (10, 1937092), (20, 968546), (40, 484273), (163, 118840), (326, 59420), (652, 29710), (815, 23768), (1304, 14855), (1630, 11884), (2971, 6520), (3260, 5942)]