4260625

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{401}}^1$

素因数の和:438

約数の個数: 20

約数和(自身を含む): 5651316

約数和(自身を除く): 1390691

約数列:

[1, 5, 17, 25, 85, 125, 401, 425, 625, 2005, 2125, 6817, 10025, 10625, 34085, 50125, 170425, 250625, 852125, 4260625]

約数ペア:

[(1, 4260625), (5, 852125), (17, 250625), (25, 170425), (85, 50125), (125, 34085), (401, 10625), (425, 10025), (625, 6817), (2005, 2125)]