20495150

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31531}}^1$

素因数の和:31556

約数の個数: 24

約数和(自身を含む): 41054664

約数和(自身を除く): 20559514

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 31531, 63062, 157655, 315310, 409903, 788275, 819806, 1576550, 2049515, 4099030, 10247575, 20495150]

約数ペア:

[(1, 20495150), (2, 10247575), (5, 4099030), (10, 2049515), (13, 1576550), (25, 819806), (26, 788275), (50, 409903), (65, 315310), (130, 157655), (325, 63062), (650, 31531)]