81875350

素因数分解:

$2^1\times 5^2\times {\mathrm{83}}^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:385

約数の個数: 48

約数和(自身を含む): 156396240

約数和(自身を除く): 74520890

約数列:

[1, 2, 5, 10, 25, 50, 83, 109, 166, 181, 218, 362, 415, 545, 830, 905, 1090, 1810, 2075, 2725, 4150, 4525, 5450, 9047, 9050, 15023, 18094, 19729, 30046, 39458, 45235, 75115, 90470, 98645, 150230, 197290, 226175, 375575, 452350, 493225, 751150, 986450, 1637507, 3275014, 8187535, 16375070, 40937675, 81875350]

約数ペア:

[(1, 81875350), (2, 40937675), (5, 16375070), (10, 8187535), (25, 3275014), (50, 1637507), (83, 986450), (109, 751150), (166, 493225), (181, 452350), (218, 375575), (362, 226175), (415, 197290), (545, 150230), (830, 98645), (905, 90470), (1090, 75115), (1810, 45235), (2075, 39458), (2725, 30046), (4150, 19729), (4525, 18094), (5450, 15023), (9047, 9050)]