20145425

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{443}}^1$

素因数の和:577

約数の個数: 24

約数和(自身を含む): 26757216

約数和(自身を除く): 6611791

約数列:

[1, 5, 17, 25, 85, 107, 425, 443, 535, 1819, 2215, 2675, 7531, 9095, 11075, 37655, 45475, 47401, 188275, 237005, 805817, 1185025, 4029085, 20145425]

約数ペア:

[(1, 20145425), (5, 4029085), (17, 1185025), (25, 805817), (85, 237005), (107, 188275), (425, 47401), (443, 45475), (535, 37655), (1819, 11075), (2215, 9095), (2675, 7531)]