20451217810

素因数分解:

$2^1\times 5^1\times {\mathrm{9431}}^1\times {\mathrm{216851}}^1$

素因数の和:226289

約数の個数: 16

約数和(自身を含む): 36816265152

約数和(自身を除く): 16365047342

約数列:

[1, 2, 5, 10, 9431, 18862, 47155, 94310, 216851, 433702, 1084255, 2168510, 2045121781, 4090243562, 10225608905, 20451217810]

約数ペア:

[(1, 20451217810), (2, 10225608905), (5, 4090243562), (10, 2045121781), (9431, 2168510), (18862, 1084255), (47155, 433702), (94310, 216851)]