2661125

素因数分解:

$5^3\times {\mathrm{61}}^1\times {\mathrm{349}}^1$

素因数の和:425

約数の個数: 16

約数和(自身を含む): 3385200

約数和(自身を除く): 724075

約数列:

[1, 5, 25, 61, 125, 305, 349, 1525, 1745, 7625, 8725, 21289, 43625, 106445, 532225, 2661125]

約数ペア:

[(1, 2661125), (5, 532225), (25, 106445), (61, 43625), (125, 21289), (305, 8725), (349, 7625), (1525, 1745)]