71571640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{255613}}^1$

素因数の和:255631

約数の個数: 32

約数和(自身を含む): 184042080

約数和(自身を除く): 112470440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 255613, 511226, 1022452, 1278065, 1789291, 2044904, 2556130, 3578582, 5112260, 7157164, 8946455, 10224520, 14314328, 17892910, 35785820, 71571640]

約数ペア:

[(1, 71571640), (2, 35785820), (4, 17892910), (5, 14314328), (7, 10224520), (8, 8946455), (10, 7157164), (14, 5112260), (20, 3578582), (28, 2556130), (35, 2044904), (40, 1789291), (56, 1278065), (70, 1022452), (140, 511226), (280, 255613)]