280989665

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{193}}^1\times {\mathrm{257}}^1$

素因数の和:569

約数の個数: 32

約数和(自身を含む): 374789376

約数和(自身を除く): 93799711

約数列:

[1, 5, 11, 55, 103, 193, 257, 515, 965, 1133, 1285, 2123, 2827, 5665, 10615, 14135, 19879, 26471, 49601, 99395, 132355, 218669, 248005, 291181, 545611, 1093345, 1455905, 2728055, 5108903, 25544515, 56197933, 280989665]

約数ペア:

[(1, 280989665), (5, 56197933), (11, 25544515), (55, 5108903), (103, 2728055), (193, 1455905), (257, 1093345), (515, 545611), (965, 291181), (1133, 248005), (1285, 218669), (2123, 132355), (2827, 99395), (5665, 49601), (10615, 26471), (14135, 19879)]