123774520

素因数分解:

$2^3\times 5^1\times {\mathrm{1213}}^1\times {\mathrm{2551}}^1$

素因数の和:3775

約数の個数: 32

約数和(自身を含む): 278831520

約数和(自身を除く): 155057000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1213, 2426, 2551, 4852, 5102, 6065, 9704, 10204, 12130, 12755, 20408, 24260, 25510, 48520, 51020, 102040, 3094363, 6188726, 12377452, 15471815, 24754904, 30943630, 61887260, 123774520]

約数ペア:

[(1, 123774520), (2, 61887260), (4, 30943630), (5, 24754904), (8, 15471815), (10, 12377452), (20, 6188726), (40, 3094363), (1213, 102040), (2426, 51020), (2551, 48520), (4852, 25510), (5102, 24260), (6065, 20408), (9704, 12755), (10204, 12130)]