489775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1$

素因数の和:171

約数の個数: 24

約数和(自身を含む): 718704

約数和(自身を除く): 228929

約数列:

[1, 5, 11, 13, 25, 55, 65, 137, 143, 275, 325, 685, 715, 1507, 1781, 3425, 3575, 7535, 8905, 19591, 37675, 44525, 97955, 489775]

約数ペア:

[(1, 489775), (5, 97955), (11, 44525), (13, 37675), (25, 19591), (55, 8905), (65, 7535), (137, 3575), (143, 3425), (275, 1781), (325, 1507), (685, 715)]