20753560

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{17891}}^1$

素因数の和:17931

約数の個数: 32

約数和(自身を含む): 48308400

約数和(自身を除く): 27554840

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 17891, 35782, 71564, 89455, 143128, 178910, 357820, 518839, 715640, 1037678, 2075356, 2594195, 4150712, 5188390, 10376780, 20753560]

約数ペア:

[(1, 20753560), (2, 10376780), (4, 5188390), (5, 4150712), (8, 2594195), (10, 2075356), (20, 1037678), (29, 715640), (40, 518839), (58, 357820), (116, 178910), (145, 143128), (232, 89455), (290, 71564), (580, 35782), (1160, 17891)]