20102800

素因数分解:

$2^4\times 5^2\times {\mathrm{29}}^1\times {\mathrm{1733}}^1$

素因数の和:1780

約数の個数: 60

約数和(自身を含む): 49991220

約数和(自身を除く): 29888420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 40, 50, 58, 80, 100, 116, 145, 200, 232, 290, 400, 464, 580, 725, 1160, 1450, 1733, 2320, 2900, 3466, 5800, 6932, 8665, 11600, 13864, 17330, 27728, 34660, 43325, 50257, 69320, 86650, 100514, 138640, 173300, 201028, 251285, 346600, 402056, 502570, 693200, 804112, 1005140, 1256425, 2010280, 2512850, 4020560, 5025700, 10051400, 20102800]

約数ペア:

[(1, 20102800), (2, 10051400), (4, 5025700), (5, 4020560), (8, 2512850), (10, 2010280), (16, 1256425), (20, 1005140), (25, 804112), (29, 693200), (40, 502570), (50, 402056), (58, 346600), (80, 251285), (100, 201028), (116, 173300), (145, 138640), (200, 100514), (232, 86650), (290, 69320), (400, 50257), (464, 43325), (580, 34660), (725, 27728), (1160, 17330), (1450, 13864), (1733, 11600), (2320, 8665), (2900, 6932), (3466, 5800)]