20002385

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{8317}}^1$

素因数の和:8372

約数の個数: 16

約数和(自身を含む): 26551056

約数和(自身を除く): 6548671

約数列:

[1, 5, 13, 37, 65, 185, 481, 2405, 8317, 41585, 108121, 307729, 540605, 1538645, 4000477, 20002385]

約数ペア:

[(1, 20002385), (5, 4000477), (13, 1538645), (37, 540605), (65, 307729), (185, 108121), (481, 41585), (2405, 8317)]