64216725

素因数分解:

$3^1\times 5^2\times {\mathrm{307}}^1\times {\mathrm{2789}}^1$

素因数の和:3109

約数の個数: 24

約数和(自身を含む): 106555680

約数和(自身を除く): 42338955

約数列:

[1, 3, 5, 15, 25, 75, 307, 921, 1535, 2789, 4605, 7675, 8367, 13945, 23025, 41835, 69725, 209175, 856223, 2568669, 4281115, 12843345, 21405575, 64216725]

約数ペア:

[(1, 64216725), (3, 21405575), (5, 12843345), (15, 4281115), (25, 2568669), (75, 856223), (307, 209175), (921, 69725), (1535, 41835), (2789, 23025), (4605, 13945), (7675, 8367)]