66611875

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{9689}}^1$

素因数の和:9720

約数の個数: 20

約数和(自身を含む): 90814680

約数和(自身を除く): 24202805

約数列:

[1, 5, 11, 25, 55, 125, 275, 625, 1375, 6875, 9689, 48445, 106579, 242225, 532895, 1211125, 2664475, 6055625, 13322375, 66611875]

約数ペア:

[(1, 66611875), (5, 13322375), (11, 6055625), (25, 2664475), (55, 1211125), (125, 532895), (275, 242225), (625, 106579), (1375, 48445), (6875, 9689)]