42212890

素因数分解:

$2^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{10321}}^1$

素因数の和:10737

約数の個数: 16

約数和(自身を含む): 76176360

約数和(自身を除く): 33963470

約数列:

[1, 2, 5, 10, 409, 818, 2045, 4090, 10321, 20642, 51605, 103210, 4221289, 8442578, 21106445, 42212890]

約数ペア:

[(1, 42212890), (2, 21106445), (5, 8442578), (10, 4221289), (409, 103210), (818, 51605), (2045, 20642), (4090, 10321)]