16208080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{281}}^1$

素因数の和:404

約数の個数: 80

約数和(自身を含む): 43640064

約数和(自身を除く): 27431984

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 103, 112, 140, 206, 280, 281, 412, 515, 560, 562, 721, 824, 1030, 1124, 1405, 1442, 1648, 1967, 2060, 2248, 2810, 2884, 3605, 3934, 4120, 4496, 5620, 5768, 7210, 7868, 8240, 9835, 11240, 11536, 14420, 15736, 19670, 22480, 28840, 28943, 31472, 39340, 57680, 57886, 78680, 115772, 144715, 157360, 202601, 231544, 289430, 405202, 463088, 578860, 810404, 1013005, 1157720, 1620808, 2026010, 2315440, 3241616, 4052020, 8104040, 16208080]

約数ペア:

[(1, 16208080), (2, 8104040), (4, 4052020), (5, 3241616), (7, 2315440), (8, 2026010), (10, 1620808), (14, 1157720), (16, 1013005), (20, 810404), (28, 578860), (35, 463088), (40, 405202), (56, 289430), (70, 231544), (80, 202601), (103, 157360), (112, 144715), (140, 115772), (206, 78680), (280, 57886), (281, 57680), (412, 39340), (515, 31472), (560, 28943), (562, 28840), (721, 22480), (824, 19670), (1030, 15736), (1124, 14420), (1405, 11536), (1442, 11240), (1648, 9835), (1967, 8240), (2060, 7868), (2248, 7210), (2810, 5768), (2884, 5620), (3605, 4496), (3934, 4120)]