18771322180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72197393}}^1$

素因数の和:72197415

約数の個数: 24

約数和(自身を含む): 42452067672

約数和(自身を除く): 23680745492

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 72197393, 144394786, 288789572, 360986965, 721973930, 938566109, 1443947860, 1877132218, 3754264436, 4692830545, 9385661090, 18771322180]

約数ペア:

[(1, 18771322180), (2, 9385661090), (4, 4692830545), (5, 3754264436), (10, 1877132218), (13, 1443947860), (20, 938566109), (26, 721973930), (52, 360986965), (65, 288789572), (130, 144394786), (260, 72197393)]