208240720

素因数分解:

$2^4\times 5^1\times {\mathrm{227}}^1\times {\mathrm{11467}}^1$

素因数の和:11707

約数の個数: 40

約数和(自身を含む): 486334944

約数和(自身を除く): 278094224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227, 454, 908, 1135, 1816, 2270, 3632, 4540, 9080, 11467, 18160, 22934, 45868, 57335, 91736, 114670, 183472, 229340, 458680, 917360, 2603009, 5206018, 10412036, 13015045, 20824072, 26030090, 41648144, 52060180, 104120360, 208240720]

約数ペア:

[(1, 208240720), (2, 104120360), (4, 52060180), (5, 41648144), (8, 26030090), (10, 20824072), (16, 13015045), (20, 10412036), (40, 5206018), (80, 2603009), (227, 917360), (454, 458680), (908, 229340), (1135, 183472), (1816, 114670), (2270, 91736), (3632, 57335), (4540, 45868), (9080, 22934), (11467, 18160)]