20969320

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{18077}}^1$

素因数の和:18117

約数の個数: 32

約数和(自身を含む): 48810600

約数和(自身を除く): 27841280

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 18077, 36154, 72308, 90385, 144616, 180770, 361540, 524233, 723080, 1048466, 2096932, 2621165, 4193864, 5242330, 10484660, 20969320]

約数ペア:

[(1, 20969320), (2, 10484660), (4, 5242330), (5, 4193864), (8, 2621165), (10, 2096932), (20, 1048466), (29, 723080), (40, 524233), (58, 361540), (116, 180770), (145, 144616), (232, 90385), (290, 72308), (580, 36154), (1160, 18077)]