828491320

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{481681}}^1$

素因数の和:481735

約数の個数: 32

約数和(自身を含む): 1907460720

約数和(自身を除く): 1078969400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 481681, 963362, 1926724, 2408405, 3853448, 4816810, 9633620, 19267240, 20712283, 41424566, 82849132, 103561415, 165698264, 207122830, 414245660, 828491320]

約数ペア:

[(1, 828491320), (2, 414245660), (4, 207122830), (5, 165698264), (8, 103561415), (10, 82849132), (20, 41424566), (40, 20712283), (43, 19267240), (86, 9633620), (172, 4816810), (215, 3853448), (344, 2408405), (430, 1926724), (860, 963362), (1720, 481681)]