999090900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{557}}^1\times {\mathrm{1993}}^1$

素因数の和:2570

約数の個数: 108

約数和(自身を含む): 3138791292

約数和(自身を除く): 2139700392

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 450, 557, 900, 1114, 1671, 1993, 2228, 2785, 3342, 3986, 5013, 5570, 5979, 6684, 7972, 8355, 9965, 10026, 11140, 11958, 13925, 16710, 17937, 19930, 20052, 23916, 25065, 27850, 29895, 33420, 35874, 39860, 41775, 49825, 50130, 55700, 59790, 71748, 83550, 89685, 99650, 100260, 119580, 125325, 149475, 167100, 179370, 199300, 250650, 298950, 358740, 448425, 501300, 597900, 896850, 1110101, 1793700, 2220202, 3330303, 4440404, 5550505, 6660606, 9990909, 11101010, 13321212, 16651515, 19981818, 22202020, 27752525, 33303030, 39963636, 49954545, 55505050, 66606060, 83257575, 99909090, 111010100, 166515150, 199818180, 249772725, 333030300, 499545450, 999090900]

約数ペア:

[(1, 999090900), (2, 499545450), (3, 333030300), (4, 249772725), (5, 199818180), (6, 166515150), (9, 111010100), (10, 99909090), (12, 83257575), (15, 66606060), (18, 55505050), (20, 49954545), (25, 39963636), (30, 33303030), (36, 27752525), (45, 22202020), (50, 19981818), (60, 16651515), (75, 13321212), (90, 11101010), (100, 9990909), (150, 6660606), (180, 5550505), (225, 4440404), (300, 3330303), (450, 2220202), (557, 1793700), (900, 1110101), (1114, 896850), (1671, 597900), (1993, 501300), (2228, 448425), (2785, 358740), (3342, 298950), (3986, 250650), (5013, 199300), (5570, 179370), (5979, 167100), (6684, 149475), (7972, 125325), (8355, 119580), (9965, 100260), (10026, 99650), (11140, 89685), (11958, 83550), (13925, 71748), (16710, 59790), (17937, 55700), (19930, 50130), (20052, 49825), (23916, 41775), (25065, 39860), (27850, 35874), (29895, 33420)]