258656875

素因数分解:

$5^4\times {\mathrm{557}}^1\times {\mathrm{743}}^1$

素因数の和:1320

約数の個数: 20

約数和(自身を含む): 324233712

約数和(自身を除く): 65576837

約数列:

[1, 5, 25, 125, 557, 625, 743, 2785, 3715, 13925, 18575, 69625, 92875, 348125, 413851, 464375, 2069255, 10346275, 51731375, 258656875]

約数ペア:

[(1, 258656875), (5, 51731375), (25, 10346275), (125, 2069255), (557, 464375), (625, 413851), (743, 348125), (2785, 92875), (3715, 69625), (13925, 18575)]