30541840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{54539}}^1$

素因数の和:54559

約数の個数: 40

約数和(自身を含む): 81155520

約数和(自身を除く): 50613680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 54539, 109078, 218156, 272695, 381773, 436312, 545390, 763546, 872624, 1090780, 1527092, 1908865, 2181560, 3054184, 3817730, 4363120, 6108368, 7635460, 15270920, 30541840]

約数ペア:

[(1, 30541840), (2, 15270920), (4, 7635460), (5, 6108368), (7, 4363120), (8, 3817730), (10, 3054184), (14, 2181560), (16, 1908865), (20, 1527092), (28, 1090780), (35, 872624), (40, 763546), (56, 545390), (70, 436312), (80, 381773), (112, 272695), (140, 218156), (280, 109078), (560, 54539)]