155971775

素因数分解:

$5^2\times {\mathrm{101}}^1\times {\mathrm{223}}^1\times {\mathrm{277}}^1$

素因数の和:611

約数の個数: 24

約数和(自身を含む): 196904064

約数和(自身を除く): 40932289

約数列:

[1, 5, 25, 101, 223, 277, 505, 1115, 1385, 2525, 5575, 6925, 22523, 27977, 61771, 112615, 139885, 308855, 563075, 699425, 1544275, 6238871, 31194355, 155971775]

約数ペア:

[(1, 155971775), (5, 31194355), (25, 6238871), (101, 1544275), (223, 699425), (277, 563075), (505, 308855), (1115, 139885), (1385, 112615), (2525, 61771), (5575, 27977), (6925, 22523)]