42138700

素因数分解:

$2^2\times 5^2\times {\mathrm{283}}^1\times {\mathrm{1489}}^1$

素因数の和:1786

約数の個数: 36

約数和(自身を含む): 91825720

約数和(自身を除く): 49687020

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 283, 566, 1132, 1415, 1489, 2830, 2978, 5660, 5956, 7075, 7445, 14150, 14890, 28300, 29780, 37225, 74450, 148900, 421387, 842774, 1685548, 2106935, 4213870, 8427740, 10534675, 21069350, 42138700]

約数ペア:

[(1, 42138700), (2, 21069350), (4, 10534675), (5, 8427740), (10, 4213870), (20, 2106935), (25, 1685548), (50, 842774), (100, 421387), (283, 148900), (566, 74450), (1132, 37225), (1415, 29780), (1489, 28300), (2830, 14890), (2978, 14150), (5660, 7445), (5956, 7075)]