20182480

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5867}}^1$

素因数の和:5923

約数の個数: 40

約数和(自身を含む): 48023712

約数和(自身を除く): 27841232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 5867, 11734, 23468, 29335, 46936, 58670, 93872, 117340, 234680, 252281, 469360, 504562, 1009124, 1261405, 2018248, 2522810, 4036496, 5045620, 10091240, 20182480]

約数ペア:

[(1, 20182480), (2, 10091240), (4, 5045620), (5, 4036496), (8, 2522810), (10, 2018248), (16, 1261405), (20, 1009124), (40, 504562), (43, 469360), (80, 252281), (86, 234680), (172, 117340), (215, 93872), (344, 58670), (430, 46936), (688, 29335), (860, 23468), (1720, 11734), (3440, 5867)]