18720491665

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{20147}}^1\times {\mathrm{9781}}^1$

素因数の和:29952

約数の個数: 16

約数和(自身を含む): 23650528320

約数和(自身を除く): 4930036655

約数列:

[1, 5, 19, 95, 9781, 20147, 48905, 100735, 185839, 382793, 929195, 1913965, 197057807, 985289035, 3744098333, 18720491665]

約数ペア:

[(1, 18720491665), (5, 3744098333), (19, 985289035), (95, 197057807), (9781, 1913965), (20147, 929195), (48905, 382793), (100735, 185839)]