123945940

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{19927}}^1$

素因数の和:20247

約数の個数: 24

約数和(自身を含む): 261136512

約数和(自身を除く): 137190572

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1555, 3110, 6220, 19927, 39854, 79708, 99635, 199270, 398540, 6197297, 12394594, 24789188, 30986485, 61972970, 123945940]

約数ペア:

[(1, 123945940), (2, 61972970), (4, 30986485), (5, 24789188), (10, 12394594), (20, 6197297), (311, 398540), (622, 199270), (1244, 99635), (1555, 79708), (3110, 39854), (6220, 19927)]