280525830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{719297}}^1$

素因数の和:719320

約数の個数: 32

約数和(自身を含む): 725052384

約数和(自身を除く): 444526554

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 719297, 1438594, 2157891, 3596485, 4315782, 7192970, 9350861, 10789455, 18701722, 21578910, 28052583, 46754305, 56105166, 93508610, 140262915, 280525830]

約数ペア:

[(1, 280525830), (2, 140262915), (3, 93508610), (5, 56105166), (6, 46754305), (10, 28052583), (13, 21578910), (15, 18701722), (26, 10789455), (30, 9350861), (39, 7192970), (65, 4315782), (78, 3596485), (130, 2157891), (195, 1438594), (390, 719297)]