69997225

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{499}}^1$

素因数の和:721

約数の個数: 24

約数和(自身を含む): 90272000

約数和(自身を除く): 20274775

約数列:

[1, 5, 25, 31, 155, 181, 499, 775, 905, 2495, 4525, 5611, 12475, 15469, 28055, 77345, 90319, 140275, 386725, 451595, 2257975, 2799889, 13999445, 69997225]

約数ペア:

[(1, 69997225), (5, 13999445), (25, 2799889), (31, 2257975), (155, 451595), (181, 386725), (499, 140275), (775, 90319), (905, 77345), (2495, 28055), (4525, 15469), (5611, 12475)]