385828280

素因数分解:

$2^3\times 5^1\times {\mathrm{809}}^1\times {\mathrm{11923}}^1$

素因数の和:12743

約数の個数: 32

約数和(自身を含む): 869259600

約数和(自身を除く): 483431320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 809, 1618, 3236, 4045, 6472, 8090, 11923, 16180, 23846, 32360, 47692, 59615, 95384, 119230, 238460, 476920, 9645707, 19291414, 38582828, 48228535, 77165656, 96457070, 192914140, 385828280]

約数ペア:

[(1, 385828280), (2, 192914140), (4, 96457070), (5, 77165656), (8, 48228535), (10, 38582828), (20, 19291414), (40, 9645707), (809, 476920), (1618, 238460), (3236, 119230), (4045, 95384), (6472, 59615), (8090, 47692), (11923, 32360), (16180, 23846)]