85220920

素因数分解:

$2^3\times 5^1\times {\mathrm{2130523}}^1$

素因数の和:2130534

約数の個数: 16

約数和(自身を含む): 191747160

約数和(自身を除く): 106526240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2130523, 4261046, 8522092, 10652615, 17044184, 21305230, 42610460, 85220920]

約数ペア:

[(1, 85220920), (2, 42610460), (4, 21305230), (5, 17044184), (8, 10652615), (10, 8522092), (20, 4261046), (40, 2130523)]