158125

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1$

素因数の和:54

約数の個数: 20

約数和(自身を含む): 224928

約数和(自身を除く): 66803

約数列:

[1, 5, 11, 23, 25, 55, 115, 125, 253, 275, 575, 625, 1265, 1375, 2875, 6325, 6875, 14375, 31625, 158125]

約数ペア:

[(1, 158125), (5, 31625), (11, 14375), (23, 6875), (25, 6325), (55, 2875), (115, 1375), (125, 1265), (253, 625), (275, 575)]