87281660

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{10883}}^1$

素因数の和:11293

約数の個数: 24

約数和(自身を含む): 183765456

約数和(自身を除く): 96483796

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 4010, 8020, 10883, 21766, 43532, 54415, 108830, 217660, 4364083, 8728166, 17456332, 21820415, 43640830, 87281660]

約数ペア:

[(1, 87281660), (2, 43640830), (4, 21820415), (5, 17456332), (10, 8728166), (20, 4364083), (401, 217660), (802, 108830), (1604, 54415), (2005, 43532), (4010, 21766), (8020, 10883)]