13399825

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{769}}^1$

素因数の和:837

約数の個数: 24

約数和(自身を含む): 18045720

約数和(自身を除く): 4645895

約数列:

[1, 5, 17, 25, 41, 85, 205, 425, 697, 769, 1025, 3485, 3845, 13073, 17425, 19225, 31529, 65365, 157645, 326825, 535993, 788225, 2679965, 13399825]

約数ペア:

[(1, 13399825), (5, 2679965), (17, 788225), (25, 535993), (41, 326825), (85, 157645), (205, 65365), (425, 31529), (697, 19225), (769, 17425), (1025, 13073), (3485, 3845)]