12858025

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{353}}^1$

素因数の和:441

約数の個数: 24

約数和(自身を含む): 16856064

約数和(自身を除く): 3998039

約数列:

[1, 5, 25, 31, 47, 155, 235, 353, 775, 1175, 1457, 1765, 7285, 8825, 10943, 16591, 36425, 54715, 82955, 273575, 414775, 514321, 2571605, 12858025]

約数ペア:

[(1, 12858025), (5, 2571605), (25, 514321), (31, 414775), (47, 273575), (155, 82955), (235, 54715), (353, 36425), (775, 16591), (1175, 10943), (1457, 8825), (1765, 7285)]