86880980

素因数分解:

$2^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{10079}}^1$

素因数の和:10519

約数の個数: 24

約数和(自身を含む): 182891520

約数和(自身を除く): 96010540

約数列:

[1, 2, 4, 5, 10, 20, 431, 862, 1724, 2155, 4310, 8620, 10079, 20158, 40316, 50395, 100790, 201580, 4344049, 8688098, 17376196, 21720245, 43440490, 86880980]

約数ペア:

[(1, 86880980), (2, 43440490), (4, 21720245), (5, 17376196), (10, 8688098), (20, 4344049), (431, 201580), (862, 100790), (1724, 50395), (2155, 40316), (4310, 20158), (8620, 10079)]