71986790

素因数分解:

$2^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{17099}}^1$

素因数の和:17527

約数の個数: 16

約数和(自身を含む): 129891600

約数和(自身を除く): 57904810

約数列:

[1, 2, 5, 10, 421, 842, 2105, 4210, 17099, 34198, 85495, 170990, 7198679, 14397358, 35993395, 71986790]

約数ペア:

[(1, 71986790), (2, 35993395), (5, 14397358), (10, 7198679), (421, 170990), (842, 85495), (2105, 34198), (4210, 17099)]