690625

素因数分解:

$5^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1$

素因数の和:55

約数の個数: 24

約数和(自身を含む): 984312

約数和(自身を除く): 293687

約数列:

[1, 5, 13, 17, 25, 65, 85, 125, 221, 325, 425, 625, 1105, 1625, 2125, 3125, 5525, 8125, 10625, 27625, 40625, 53125, 138125, 690625]

約数ペア:

[(1, 690625), (5, 138125), (13, 53125), (17, 40625), (25, 27625), (65, 10625), (85, 8125), (125, 5525), (221, 3125), (325, 2125), (425, 1625), (625, 1105)]