2019439045

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{647}}^1\times {\mathrm{1549}}^1$

素因数の和:2245

約数の個数: 32

約数和(自身を含む): 2699827200

約数和(自身を除く): 680388155

約数列:

[1, 5, 13, 31, 65, 155, 403, 647, 1549, 2015, 3235, 7745, 8411, 20057, 20137, 42055, 48019, 100285, 100685, 240095, 260741, 624247, 1002203, 1303705, 3121235, 5011015, 13028639, 31068293, 65143195, 155341465, 403887809, 2019439045]

約数ペア:

[(1, 2019439045), (5, 403887809), (13, 155341465), (31, 65143195), (65, 31068293), (155, 13028639), (403, 5011015), (647, 3121235), (1549, 1303705), (2015, 1002203), (3235, 624247), (7745, 260741), (8411, 240095), (20057, 100685), (20137, 100285), (42055, 48019)]