28637660

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{6421}}^1$

素因数の和:6653

約数の個数: 24

約数和(自身を含む): 60418176

約数和(自身を除く): 31780516

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 6421, 12842, 25684, 32105, 64210, 128420, 1431883, 2863766, 5727532, 7159415, 14318830, 28637660]

約数ペア:

[(1, 28637660), (2, 14318830), (4, 7159415), (5, 5727532), (10, 2863766), (20, 1431883), (223, 128420), (446, 64210), (892, 32105), (1115, 25684), (2230, 12842), (4460, 6421)]