19178680

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{4481}}^1$

素因数の和:4599

約数の個数: 32

約数和(自身を含む): 43565040

約数和(自身を除く): 24386360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 4481, 8962, 17924, 22405, 35848, 44810, 89620, 179240, 479467, 958934, 1917868, 2397335, 3835736, 4794670, 9589340, 19178680]

約数ペア:

[(1, 19178680), (2, 9589340), (4, 4794670), (5, 3835736), (8, 2397335), (10, 1917868), (20, 958934), (40, 479467), (107, 179240), (214, 89620), (428, 44810), (535, 35848), (856, 22405), (1070, 17924), (2140, 8962), (4280, 4481)]