128264080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{1009}}^1$

素因数の和:1256

約数の個数: 80

約数和(自身を含む): 342656640

約数和(自身を除く): 214392560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 227, 280, 454, 560, 908, 1009, 1135, 1589, 1816, 2018, 2270, 3178, 3632, 4036, 4540, 5045, 6356, 7063, 7945, 8072, 9080, 10090, 12712, 14126, 15890, 16144, 18160, 20180, 25424, 28252, 31780, 35315, 40360, 56504, 63560, 70630, 80720, 113008, 127120, 141260, 229043, 282520, 458086, 565040, 916172, 1145215, 1603301, 1832344, 2290430, 3206602, 3664688, 4580860, 6413204, 8016505, 9161720, 12826408, 16033010, 18323440, 25652816, 32066020, 64132040, 128264080]

約数ペア:

[(1, 128264080), (2, 64132040), (4, 32066020), (5, 25652816), (7, 18323440), (8, 16033010), (10, 12826408), (14, 9161720), (16, 8016505), (20, 6413204), (28, 4580860), (35, 3664688), (40, 3206602), (56, 2290430), (70, 1832344), (80, 1603301), (112, 1145215), (140, 916172), (227, 565040), (280, 458086), (454, 282520), (560, 229043), (908, 141260), (1009, 127120), (1135, 113008), (1589, 80720), (1816, 70630), (2018, 63560), (2270, 56504), (3178, 40360), (3632, 35315), (4036, 31780), (4540, 28252), (5045, 25424), (6356, 20180), (7063, 18160), (7945, 16144), (8072, 15890), (9080, 14126), (10090, 12712)]