20478825

素因数分解:

$3^5\times 5^2\times {\mathrm{3371}}^1$

素因数の和:3396

約数の個数: 36

約数和(自身を含む): 38049648

約数和(自身を除く): 17570823

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 243, 405, 675, 1215, 2025, 3371, 6075, 10113, 16855, 30339, 50565, 84275, 91017, 151695, 252825, 273051, 455085, 758475, 819153, 1365255, 2275425, 4095765, 6826275, 20478825]

約数ペア:

[(1, 20478825), (3, 6826275), (5, 4095765), (9, 2275425), (15, 1365255), (25, 819153), (27, 758475), (45, 455085), (75, 273051), (81, 252825), (135, 151695), (225, 91017), (243, 84275), (405, 50565), (675, 30339), (1215, 16855), (2025, 10113), (3371, 6075)]