19913800

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{5857}}^1$

素因数の和:5890

約数の個数: 48

約数和(自身を含む): 49031460

約数和(自身を除く): 29117660

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 85, 100, 136, 170, 200, 340, 425, 680, 850, 1700, 3400, 5857, 11714, 23428, 29285, 46856, 58570, 99569, 117140, 146425, 199138, 234280, 292850, 398276, 497845, 585700, 796552, 995690, 1171400, 1991380, 2489225, 3982760, 4978450, 9956900, 19913800]

約数ペア:

[(1, 19913800), (2, 9956900), (4, 4978450), (5, 3982760), (8, 2489225), (10, 1991380), (17, 1171400), (20, 995690), (25, 796552), (34, 585700), (40, 497845), (50, 398276), (68, 292850), (85, 234280), (100, 199138), (136, 146425), (170, 117140), (200, 99569), (340, 58570), (425, 46856), (680, 29285), (850, 23428), (1700, 11714), (3400, 5857)]