81908690

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{281}}^1\times {\mathrm{283}}^1$

素因数の和:674

約数の個数: 32

約数和(自身を含む): 149924736

約数和(自身を除く): 68016046

約数列:

[1, 2, 5, 10, 103, 206, 281, 283, 515, 562, 566, 1030, 1405, 1415, 2810, 2830, 28943, 29149, 57886, 58298, 79523, 144715, 145745, 159046, 289430, 291490, 397615, 795230, 8190869, 16381738, 40954345, 81908690]

約数ペア:

[(1, 81908690), (2, 40954345), (5, 16381738), (10, 8190869), (103, 795230), (206, 397615), (281, 291490), (283, 289430), (515, 159046), (562, 145745), (566, 144715), (1030, 79523), (1405, 58298), (1415, 57886), (2810, 29149), (2830, 28943)]