20810960

素因数分解:

$2^4\times 5^1\times {\mathrm{260137}}^1$

素因数の和:260150

約数の個数: 20

約数和(自身を含む): 48385668

約数和(自身を除く): 27574708

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 260137, 520274, 1040548, 1300685, 2081096, 2601370, 4162192, 5202740, 10405480, 20810960]

約数ペア:

[(1, 20810960), (2, 10405480), (4, 5202740), (5, 4162192), (8, 2601370), (10, 2081096), (16, 1300685), (20, 1040548), (40, 520274), (80, 260137)]