388638775

素因数分解:

$5^2\times 7^1\times {\mathrm{491}}^1\times {\mathrm{4523}}^1$

素因数の和:5031

約数の個数: 24

約数和(自身を含む): 552000384

約数和(自身を除く): 163361609

約数列:

[1, 5, 7, 25, 35, 175, 491, 2455, 3437, 4523, 12275, 17185, 22615, 31661, 85925, 113075, 158305, 791525, 2220793, 11103965, 15545551, 55519825, 77727755, 388638775]

約数ペア:

[(1, 388638775), (5, 77727755), (7, 55519825), (25, 15545551), (35, 11103965), (175, 2220793), (491, 791525), (2455, 158305), (3437, 113075), (4523, 85925), (12275, 31661), (17185, 22615)]