28545740

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{9091}}^1$

素因数の和:9257

約数の個数: 24

約数和(自身を含む): 60334512

約数和(自身を除く): 31788772

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 9091, 18182, 36364, 45455, 90910, 181820, 1427287, 2854574, 5709148, 7136435, 14272870, 28545740]

約数ペア:

[(1, 28545740), (2, 14272870), (4, 7136435), (5, 5709148), (10, 2854574), (20, 1427287), (157, 181820), (314, 90910), (628, 45455), (785, 36364), (1570, 18182), (3140, 9091)]