21920700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{821}}^1$

素因数の和:927

約数の個数: 72

約数和(自身を含む): 64214640

約数和(自身を除く): 42293940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 89, 100, 150, 178, 267, 300, 356, 445, 534, 821, 890, 1068, 1335, 1642, 1780, 2225, 2463, 2670, 3284, 4105, 4450, 4926, 5340, 6675, 8210, 8900, 9852, 12315, 13350, 16420, 20525, 24630, 26700, 41050, 49260, 61575, 73069, 82100, 123150, 146138, 219207, 246300, 292276, 365345, 438414, 730690, 876828, 1096035, 1461380, 1826725, 2192070, 3653450, 4384140, 5480175, 7306900, 10960350, 21920700]

約数ペア:

[(1, 21920700), (2, 10960350), (3, 7306900), (4, 5480175), (5, 4384140), (6, 3653450), (10, 2192070), (12, 1826725), (15, 1461380), (20, 1096035), (25, 876828), (30, 730690), (50, 438414), (60, 365345), (75, 292276), (89, 246300), (100, 219207), (150, 146138), (178, 123150), (267, 82100), (300, 73069), (356, 61575), (445, 49260), (534, 41050), (821, 26700), (890, 24630), (1068, 20525), (1335, 16420), (1642, 13350), (1780, 12315), (2225, 9852), (2463, 8900), (2670, 8210), (3284, 6675), (4105, 5340), (4450, 4926)]