209880470

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{72623}}^1$

素因数の和:72664

約数の個数: 24

約数和(自身を含む): 401320224

約数和(自身を除く): 191439754

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445, 2890, 72623, 145246, 363115, 726230, 1234591, 2469182, 6172955, 12345910, 20988047, 41976094, 104940235, 209880470]

約数ペア:

[(1, 209880470), (2, 104940235), (5, 41976094), (10, 20988047), (17, 12345910), (34, 6172955), (85, 2469182), (170, 1234591), (289, 726230), (578, 363115), (1445, 145246), (2890, 72623)]