81121010

素因数分解:

$2^1\times 5^1\times {\mathrm{179}}^1\times {\mathrm{45319}}^1$

素因数の和:45505

約数の個数: 16

約数和(自身を含む): 146836800

約数和(自身を除く): 65715790

約数列:

[1, 2, 5, 10, 179, 358, 895, 1790, 45319, 90638, 226595, 453190, 8112101, 16224202, 40560505, 81121010]

約数ペア:

[(1, 81121010), (2, 40560505), (5, 16224202), (10, 8112101), (179, 453190), (358, 226595), (895, 90638), (1790, 45319)]