20945525

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{499}}^1$

素因数の和:605

約数の個数: 24

約数和(自身を含む): 27528000

約数和(自身を除く): 6582475

約数列:

[1, 5, 23, 25, 73, 115, 365, 499, 575, 1679, 1825, 2495, 8395, 11477, 12475, 36427, 41975, 57385, 182135, 286925, 837821, 910675, 4189105, 20945525]

約数ペア:

[(1, 20945525), (5, 4189105), (23, 910675), (25, 837821), (73, 286925), (115, 182135), (365, 57385), (499, 41975), (575, 36427), (1679, 12475), (1825, 11477), (2495, 8395)]