89840125

素因数分解:

$5^3\times {\mathrm{311}}^1\times {\mathrm{2311}}^1$

素因数の和:2637

約数の個数: 16

約数和(自身を含む): 112529664

約数和(自身を除く): 22689539

約数列:

[1, 5, 25, 125, 311, 1555, 2311, 7775, 11555, 38875, 57775, 288875, 718721, 3593605, 17968025, 89840125]

約数ペア:

[(1, 89840125), (5, 17968025), (25, 3593605), (125, 718721), (311, 288875), (1555, 57775), (2311, 38875), (7775, 11555)]