13333225

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:289

約数の個数: 24

約数和(自身を含む): 17240960

約数和(自身を除く): 3907735

約数列:

[1, 5, 25, 43, 79, 157, 215, 395, 785, 1075, 1975, 3397, 3925, 6751, 12403, 16985, 33755, 62015, 84925, 168775, 310075, 533329, 2666645, 13333225]

約数ペア:

[(1, 13333225), (5, 2666645), (25, 533329), (43, 310075), (79, 168775), (157, 84925), (215, 62015), (395, 33755), (785, 16985), (1075, 12403), (1975, 6751), (3397, 3925)]