87061660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{621869}}^1$

素因数の和:621885

約数の個数: 24

約数和(自身を含む): 208948320

約数和(自身を除く): 121886660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 621869, 1243738, 2487476, 3109345, 4353083, 6218690, 8706166, 12437380, 17412332, 21765415, 43530830, 87061660]

約数ペア:

[(1, 87061660), (2, 43530830), (4, 21765415), (5, 17412332), (7, 12437380), (10, 8706166), (14, 6218690), (20, 4353083), (28, 3109345), (35, 2487476), (70, 1243738), (140, 621869)]