1640830009

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^2\times {\mathrm{13171}}^1$

素因数の和:13265

約数の個数: 24

約数和(自身を含む): 2075696448

約数和(自身を除く): 434866439

約数列:

[1, 7, 13, 37, 91, 259, 481, 1369, 3367, 9583, 13171, 17797, 92197, 124579, 171223, 487327, 1198561, 3411289, 6335251, 18031099, 44346757, 126217693, 234404287, 1640830009]

約数ペア:

[(1, 1640830009), (7, 234404287), (13, 126217693), (37, 44346757), (91, 18031099), (259, 6335251), (481, 3411289), (1369, 1198561), (3367, 487327), (9583, 171223), (13171, 124579), (17797, 92197)]