28772820

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{17761}}^1$

素因数の和:17782

約数の個数: 60

約数和(自身を含む): 90266484

約数和(自身を除く): 61493664

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 17761, 35522, 53283, 71044, 88805, 106566, 159849, 177610, 213132, 266415, 319698, 355220, 479547, 532830, 639396, 799245, 959094, 1065660, 1438641, 1598490, 1918188, 2397735, 2877282, 3196980, 4795470, 5754564, 7193205, 9590940, 14386410, 28772820]

約数ペア:

[(1, 28772820), (2, 14386410), (3, 9590940), (4, 7193205), (5, 5754564), (6, 4795470), (9, 3196980), (10, 2877282), (12, 2397735), (15, 1918188), (18, 1598490), (20, 1438641), (27, 1065660), (30, 959094), (36, 799245), (45, 639396), (54, 532830), (60, 479547), (81, 355220), (90, 319698), (108, 266415), (135, 213132), (162, 177610), (180, 159849), (270, 106566), (324, 88805), (405, 71044), (540, 53283), (810, 35522), (1620, 17761)]