684571960

素因数分解:

$2^3\times 5^1\times {\mathrm{1279}}^1\times {\mathrm{13381}}^1$

素因数の和:14671

約数の個数: 32

約数和(自身を含む): 1541606400

約数和(自身を除く): 857034440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1279, 2558, 5116, 6395, 10232, 12790, 13381, 25580, 26762, 51160, 53524, 66905, 107048, 133810, 267620, 535240, 17114299, 34228598, 68457196, 85571495, 136914392, 171142990, 342285980, 684571960]

約数ペア:

[(1, 684571960), (2, 342285980), (4, 171142990), (5, 136914392), (8, 85571495), (10, 68457196), (20, 34228598), (40, 17114299), (1279, 535240), (2558, 267620), (5116, 133810), (6395, 107048), (10232, 66905), (12790, 53524), (13381, 51160), (25580, 26762)]