81002340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{619}}^1\times {\mathrm{727}}^1$

素因数の和:1361

約数の個数: 72

約数和(自身を含む): 246442560

約数和(自身を除く): 165440220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 619, 727, 1238, 1454, 1857, 2181, 2476, 2908, 3095, 3635, 3714, 4362, 5571, 6190, 6543, 7270, 7428, 8724, 9285, 10905, 11142, 12380, 13086, 14540, 18570, 21810, 22284, 26172, 27855, 32715, 37140, 43620, 55710, 65430, 111420, 130860, 450013, 900026, 1350039, 1800052, 2250065, 2700078, 4050117, 4500130, 5400156, 6750195, 8100234, 9000260, 13500390, 16200468, 20250585, 27000780, 40501170, 81002340]

約数ペア:

[(1, 81002340), (2, 40501170), (3, 27000780), (4, 20250585), (5, 16200468), (6, 13500390), (9, 9000260), (10, 8100234), (12, 6750195), (15, 5400156), (18, 4500130), (20, 4050117), (30, 2700078), (36, 2250065), (45, 1800052), (60, 1350039), (90, 900026), (180, 450013), (619, 130860), (727, 111420), (1238, 65430), (1454, 55710), (1857, 43620), (2181, 37140), (2476, 32715), (2908, 27855), (3095, 26172), (3635, 22284), (3714, 21810), (4362, 18570), (5571, 14540), (6190, 13086), (6543, 12380), (7270, 11142), (7428, 10905), (8724, 9285)]