19287940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137771}}^1$

素因数の和:137787

約数の個数: 24

約数和(自身を含む): 46291392

約数和(自身を除く): 27003452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 137771, 275542, 551084, 688855, 964397, 1377710, 1928794, 2755420, 3857588, 4821985, 9643970, 19287940]

約数ペア:

[(1, 19287940), (2, 9643970), (4, 4821985), (5, 3857588), (7, 2755420), (10, 1928794), (14, 1377710), (20, 964397), (28, 688855), (35, 551084), (70, 275542), (140, 137771)]