20701325

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{727}}^1$

素因数の和:821

約数の個数: 24

約数和(自身を含む): 27623232

約数和(自身を除く): 6921907

約数列:

[1, 5, 17, 25, 67, 85, 335, 425, 727, 1139, 1675, 3635, 5695, 12359, 18175, 28475, 48709, 61795, 243545, 308975, 828053, 1217725, 4140265, 20701325]

約数ペア:

[(1, 20701325), (5, 4140265), (17, 1217725), (25, 828053), (67, 308975), (85, 243545), (335, 61795), (425, 48709), (727, 28475), (1139, 18175), (1675, 12359), (3635, 5695)]