81243900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{90271}}^1$

素因数の和:90291

約数の個数: 54

約数和(自身を含む): 254657312

約数和(自身を除く): 173413412

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, 900, 90271, 180542, 270813, 361084, 451355, 541626, 812439, 902710, 1083252, 1354065, 1624878, 1805420, 2256775, 2708130, 3249756, 4062195, 4513550, 5416260, 6770325, 8124390, 9027100, 13540650, 16248780, 20310975, 27081300, 40621950, 81243900]

約数ペア:

[(1, 81243900), (2, 40621950), (3, 27081300), (4, 20310975), (5, 16248780), (6, 13540650), (9, 9027100), (10, 8124390), (12, 6770325), (15, 5416260), (18, 4513550), (20, 4062195), (25, 3249756), (30, 2708130), (36, 2256775), (45, 1805420), (50, 1624878), (60, 1354065), (75, 1083252), (90, 902710), (100, 812439), (150, 541626), (180, 451355), (225, 361084), (300, 270813), (450, 180542), (900, 90271)]