217318660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{835841}}^1$

素因数の和:835863

約数の個数: 24

約数和(自身を含む): 491475096

約数和(自身を除く): 274156436

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 835841, 1671682, 3343364, 4179205, 8358410, 10865933, 16716820, 21731866, 43463732, 54329665, 108659330, 217318660]

約数ペア:

[(1, 217318660), (2, 108659330), (4, 54329665), (5, 43463732), (10, 21731866), (13, 16716820), (20, 10865933), (26, 8358410), (52, 4179205), (65, 3343364), (130, 1671682), (260, 835841)]