25101495

素因数分解:

$3^4\times 5^1\times {\mathrm{61979}}^1$

素因数の和:61996

約数の個数: 20

約数和(自身を含む): 44997480

約数和(自身を除く): 19895985

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 61979, 185937, 309895, 557811, 929685, 1673433, 2789055, 5020299, 8367165, 25101495]

約数ペア:

[(1, 25101495), (3, 8367165), (5, 5020299), (9, 2789055), (15, 1673433), (27, 929685), (45, 557811), (81, 309895), (135, 185937), (405, 61979)]