161704660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{621941}}^1$

素因数の和:621963

約数の個数: 24

約数和(自身を含む): 365701896

約数和(自身を除く): 203997236

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 621941, 1243882, 2487764, 3109705, 6219410, 8085233, 12438820, 16170466, 32340932, 40426165, 80852330, 161704660]

約数ペア:

[(1, 161704660), (2, 80852330), (4, 40426165), (5, 32340932), (10, 16170466), (13, 12438820), (20, 8085233), (26, 6219410), (52, 3109705), (65, 2487764), (130, 1243882), (260, 621941)]