201557680

素因数分解:

$2^4\times 5^1\times {\mathrm{2519471}}^1$

素因数の和:2519484

約数の個数: 20

約数和(自身を含む): 468621792

約数和(自身を除く): 267064112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2519471, 5038942, 10077884, 12597355, 20155768, 25194710, 40311536, 50389420, 100778840, 201557680]

約数ペア:

[(1, 201557680), (2, 100778840), (4, 50389420), (5, 40311536), (8, 25194710), (10, 20155768), (16, 12597355), (20, 10077884), (40, 5038942), (80, 2519471)]