8345440

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1213}}^1$

素因数の和:1271

約数の個数: 48

約数和(自身を含む): 20191248

約数和(自身を除く): 11845808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1213, 1376, 1720, 2426, 3440, 4852, 6065, 6880, 9704, 12130, 19408, 24260, 38816, 48520, 52159, 97040, 104318, 194080, 208636, 260795, 417272, 521590, 834544, 1043180, 1669088, 2086360, 4172720, 8345440]

約数ペア:

[(1, 8345440), (2, 4172720), (4, 2086360), (5, 1669088), (8, 1043180), (10, 834544), (16, 521590), (20, 417272), (32, 260795), (40, 208636), (43, 194080), (80, 104318), (86, 97040), (160, 52159), (172, 48520), (215, 38816), (344, 24260), (430, 19408), (688, 12130), (860, 9704), (1213, 6880), (1376, 6065), (1720, 4852), (2426, 3440)]