18742550

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:321

約数の個数: 48

約数和(自身を含む): 37237200

約数和(自身を除く): 18494650

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 109, 181, 190, 218, 362, 475, 545, 905, 950, 1090, 1810, 2071, 2725, 3439, 4142, 4525, 5450, 6878, 9050, 10355, 17195, 19729, 20710, 34390, 39458, 51775, 85975, 98645, 103550, 171950, 197290, 374851, 493225, 749702, 986450, 1874255, 3748510, 9371275, 18742550]

約数ペア:

[(1, 18742550), (2, 9371275), (5, 3748510), (10, 1874255), (19, 986450), (25, 749702), (38, 493225), (50, 374851), (95, 197290), (109, 171950), (181, 103550), (190, 98645), (218, 85975), (362, 51775), (475, 39458), (545, 34390), (905, 20710), (950, 19729), (1090, 17195), (1810, 10355), (2071, 9050), (2725, 6878), (3439, 5450), (4142, 4525)]