1279985990

素因数分解:

$2^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{859051}}^1$

素因数の和:859207

約数の個数: 16

約数和(自身を含む): 2319440400

約数和(自身を除く): 1039454410

約数列:

[1, 2, 5, 10, 149, 298, 745, 1490, 859051, 1718102, 4295255, 8590510, 127998599, 255997198, 639992995, 1279985990]

約数ペア:

[(1, 1279985990), (2, 639992995), (5, 255997198), (10, 127998599), (149, 8590510), (298, 4295255), (745, 1718102), (1490, 859051)]