20346737380

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{1587109}}^1$

素因数の和:1587759

約数の個数: 24

約数和(自身を含む): 42794834040

約数和(自身を除く): 22448096660

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2564, 3205, 6410, 12820, 1587109, 3174218, 6348436, 7935545, 15871090, 31742180, 1017336869, 2034673738, 4069347476, 5086684345, 10173368690, 20346737380]

約数ペア:

[(1, 20346737380), (2, 10173368690), (4, 5086684345), (5, 4069347476), (10, 2034673738), (20, 1017336869), (641, 31742180), (1282, 15871090), (2564, 7935545), (3205, 6348436), (6410, 3174218), (12820, 1587109)]