1281835

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:258

約数の個数: 16

約数和(自身を含む): 1647360

約数和(自身を除く): 365525

約数列:

[1, 5, 19, 95, 103, 131, 515, 655, 1957, 2489, 9785, 12445, 13493, 67465, 256367, 1281835]

約数ペア:

[(1, 1281835), (5, 256367), (19, 67465), (95, 13493), (103, 12445), (131, 9785), (515, 2489), (655, 1957)]