823225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1$

素因数の和:189

約数の個数: 24

約数和(自身を含む): 1171800

約数和(自身を除く): 348575

約数列:

[1, 5, 13, 17, 25, 65, 85, 149, 221, 325, 425, 745, 1105, 1937, 2533, 3725, 5525, 9685, 12665, 32929, 48425, 63325, 164645, 823225]

約数ペア:

[(1, 823225), (5, 164645), (13, 63325), (17, 48425), (25, 32929), (65, 12665), (85, 9685), (149, 5525), (221, 3725), (325, 2533), (425, 1937), (745, 1105)]