81020250

素因数分解:

$2^1\times 3^4\times 5^3\times {\mathrm{4001}}^1$

素因数の和:4030

約数の個数: 80

約数和(自身を含む): 226625256

約数和(自身を除く): 145605006

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 30, 45, 50, 54, 75, 81, 90, 125, 135, 150, 162, 225, 250, 270, 375, 405, 450, 675, 750, 810, 1125, 1350, 2025, 2250, 3375, 4001, 4050, 6750, 8002, 10125, 12003, 20005, 20250, 24006, 36009, 40010, 60015, 72018, 100025, 108027, 120030, 180045, 200050, 216054, 300075, 324081, 360090, 500125, 540135, 600150, 648162, 900225, 1000250, 1080270, 1500375, 1620405, 1800450, 2700675, 3000750, 3240810, 4501125, 5401350, 8102025, 9002250, 13503375, 16204050, 27006750, 40510125, 81020250]

約数ペア:

[(1, 81020250), (2, 40510125), (3, 27006750), (5, 16204050), (6, 13503375), (9, 9002250), (10, 8102025), (15, 5401350), (18, 4501125), (25, 3240810), (27, 3000750), (30, 2700675), (45, 1800450), (50, 1620405), (54, 1500375), (75, 1080270), (81, 1000250), (90, 900225), (125, 648162), (135, 600150), (150, 540135), (162, 500125), (225, 360090), (250, 324081), (270, 300075), (375, 216054), (405, 200050), (450, 180045), (675, 120030), (750, 108027), (810, 100025), (1125, 72018), (1350, 60015), (2025, 40010), (2250, 36009), (3375, 24006), (4001, 20250), (4050, 20005), (6750, 12003), (8002, 10125)]