19479959540

素因数分解:

$2^2\times 5^1\times {\mathrm{809}}^1\times {\mathrm{1203953}}^1$

素因数の和:1204771

約数の個数: 24

約数和(自身を含む): 40958515080

約数和(自身を除く): 21478555540

約数列:

[1, 2, 4, 5, 10, 20, 809, 1618, 3236, 4045, 8090, 16180, 1203953, 2407906, 4815812, 6019765, 12039530, 24079060, 973997977, 1947995954, 3895991908, 4869989885, 9739979770, 19479959540]

約数ペア:

[(1, 19479959540), (2, 9739979770), (4, 4869989885), (5, 3895991908), (10, 1947995954), (20, 973997977), (809, 24079060), (1618, 12039530), (3236, 6019765), (4045, 4815812), (8090, 2407906), (16180, 1203953)]