71661740

素因数分解:

$2^2\times 5^1\times {\mathrm{1409}}^1\times {\mathrm{2543}}^1$

素因数の和:3961

約数の個数: 24

約数和(自身を含む): 150655680

約数和(自身を除く): 78993940

約数列:

[1, 2, 4, 5, 10, 20, 1409, 2543, 2818, 5086, 5636, 7045, 10172, 12715, 14090, 25430, 28180, 50860, 3583087, 7166174, 14332348, 17915435, 35830870, 71661740]

約数ペア:

[(1, 71661740), (2, 35830870), (4, 17915435), (5, 14332348), (10, 7166174), (20, 3583087), (1409, 50860), (2543, 28180), (2818, 25430), (5086, 14090), (5636, 12715), (7045, 10172)]