82810700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{281}}^1\times {\mathrm{421}}^1$

素因数の和:723

約数の個数: 72

約数和(自身を含む): 206590944

約数和(自身を除く): 123780244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 281, 350, 421, 562, 700, 842, 1124, 1405, 1684, 1967, 2105, 2810, 2947, 3934, 4210, 5620, 5894, 7025, 7868, 8420, 9835, 10525, 11788, 14050, 14735, 19670, 21050, 28100, 29470, 39340, 42100, 49175, 58940, 73675, 98350, 118301, 147350, 196700, 236602, 294700, 473204, 591505, 828107, 1183010, 1656214, 2366020, 2957525, 3312428, 4140535, 5915050, 8281070, 11830100, 16562140, 20702675, 41405350, 82810700]

約数ペア:

[(1, 82810700), (2, 41405350), (4, 20702675), (5, 16562140), (7, 11830100), (10, 8281070), (14, 5915050), (20, 4140535), (25, 3312428), (28, 2957525), (35, 2366020), (50, 1656214), (70, 1183010), (100, 828107), (140, 591505), (175, 473204), (281, 294700), (350, 236602), (421, 196700), (562, 147350), (700, 118301), (842, 98350), (1124, 73675), (1405, 58940), (1684, 49175), (1967, 42100), (2105, 39340), (2810, 29470), (2947, 28100), (3934, 21050), (4210, 19670), (5620, 14735), (5894, 14050), (7025, 11788), (7868, 10525), (8420, 9835)]