242790580

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{409}}^1\times {\mathrm{443}}^1$

素因数の和:928

約数の個数: 48

約数和(自身を含む): 519906240

約数和(自身を除く): 277115660

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 409, 443, 670, 818, 886, 1340, 1636, 1772, 2045, 2215, 4090, 4430, 8180, 8860, 27403, 29681, 54806, 59362, 109612, 118724, 137015, 148405, 181187, 274030, 296810, 362374, 548060, 593620, 724748, 905935, 1811870, 3623740, 12139529, 24279058, 48558116, 60697645, 121395290, 242790580]

約数ペア:

[(1, 242790580), (2, 121395290), (4, 60697645), (5, 48558116), (10, 24279058), (20, 12139529), (67, 3623740), (134, 1811870), (268, 905935), (335, 724748), (409, 593620), (443, 548060), (670, 362374), (818, 296810), (886, 274030), (1340, 181187), (1636, 148405), (1772, 137015), (2045, 118724), (2215, 109612), (4090, 59362), (4430, 54806), (8180, 29681), (8860, 27403)]