28476625

素因数分解:

$5^3\times {\mathrm{409}}^1\times {\mathrm{557}}^1$

素因数の和:981

約数の個数: 16

約数和(自身を含む): 35689680

約数和(自身を除く): 7213055

約数列:

[1, 5, 25, 125, 409, 557, 2045, 2785, 10225, 13925, 51125, 69625, 227813, 1139065, 5695325, 28476625]

約数ペア:

[(1, 28476625), (5, 5695325), (25, 1139065), (125, 227813), (409, 69625), (557, 51125), (2045, 13925), (2785, 10225)]