20448075

素因数分解:

$3^1\times 5^2\times {\mathrm{103}}^1\times {\mathrm{2647}}^1$

素因数の和:2763

約数の個数: 24

約数和(自身を含む): 34148608

約数和(自身を除く): 13700533

約数列:

[1, 3, 5, 15, 25, 75, 103, 309, 515, 1545, 2575, 2647, 7725, 7941, 13235, 39705, 66175, 198525, 272641, 817923, 1363205, 4089615, 6816025, 20448075]

約数ペア:

[(1, 20448075), (3, 6816025), (5, 4089615), (15, 1363205), (25, 817923), (75, 272641), (103, 198525), (309, 66175), (515, 39705), (1545, 13235), (2575, 7941), (2647, 7725)]