85390420

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{80557}}^1$

素因数の和:80619

約数の個数: 24

約数和(自身を含む): 182705544

約数和(自身を除く): 97315124

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 80557, 161114, 322228, 402785, 805570, 1611140, 4269521, 8539042, 17078084, 21347605, 42695210, 85390420]

約数ペア:

[(1, 85390420), (2, 42695210), (4, 21347605), (5, 17078084), (10, 8539042), (20, 4269521), (53, 1611140), (106, 805570), (212, 402785), (265, 322228), (530, 161114), (1060, 80557)]