2811875

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{409}}^1$

素因数の和:440

約数の個数: 20

約数和(自身を含む): 3842520

約数和(自身を除く): 1030645

約数列:

[1, 5, 11, 25, 55, 125, 275, 409, 625, 1375, 2045, 4499, 6875, 10225, 22495, 51125, 112475, 255625, 562375, 2811875]

約数ペア:

[(1, 2811875), (5, 562375), (11, 255625), (25, 112475), (55, 51125), (125, 22495), (275, 10225), (409, 6875), (625, 4499), (1375, 2045)]