20512120655

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{227}}^1\times {\mathrm{106937}}^1$

素因数の和:107195

約数の個数: 24

約数和(自身を含む): 26771286672

約数和(自身を除く): 6259166017

約数列:

[1, 5, 13, 65, 169, 227, 845, 1135, 2951, 14755, 38363, 106937, 191815, 534685, 1390181, 6950905, 18072353, 24274699, 90361765, 121373495, 315571087, 1577855435, 4102424131, 20512120655]

約数ペア:

[(1, 20512120655), (5, 4102424131), (13, 1577855435), (65, 315571087), (169, 121373495), (227, 90361765), (845, 24274699), (1135, 18072353), (2951, 6950905), (14755, 1390181), (38363, 534685), (106937, 191815)]