21667400

素因数分解:

$2^3\times 5^2\times {\mathrm{131}}^1\times {\mathrm{827}}^1$

素因数の和:974

約数の個数: 48

約数和(自身を含む): 50822640

約数和(自身を除く): 29155240

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 131, 200, 262, 524, 655, 827, 1048, 1310, 1654, 2620, 3275, 3308, 4135, 5240, 6550, 6616, 8270, 13100, 16540, 20675, 26200, 33080, 41350, 82700, 108337, 165400, 216674, 433348, 541685, 866696, 1083370, 2166740, 2708425, 4333480, 5416850, 10833700, 21667400]

約数ペア:

[(1, 21667400), (2, 10833700), (4, 5416850), (5, 4333480), (8, 2708425), (10, 2166740), (20, 1083370), (25, 866696), (40, 541685), (50, 433348), (100, 216674), (131, 165400), (200, 108337), (262, 82700), (524, 41350), (655, 33080), (827, 26200), (1048, 20675), (1310, 16540), (1654, 13100), (2620, 8270), (3275, 6616), (3308, 6550), (4135, 5240)]