2501980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9623}}^1$

素因数の和:9645

約数の個数: 24

約数和(自身を含む): 5658912

約数和(自身を除く): 3156932

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 9623, 19246, 38492, 48115, 96230, 125099, 192460, 250198, 500396, 625495, 1250990, 2501980]

約数ペア:

[(1, 2501980), (2, 1250990), (4, 625495), (5, 500396), (10, 250198), (13, 192460), (20, 125099), (26, 96230), (52, 48115), (65, 38492), (130, 19246), (260, 9623)]