20889900

素因数分解:

$2^2\times 3^4\times 5^2\times {\mathrm{2579}}^1$

素因数の和:2605

約数の個数: 90

約数和(自身を含む): 67743060

約数和(自身を除く): 46853160

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 81, 90, 100, 108, 135, 150, 162, 180, 225, 270, 300, 324, 405, 450, 540, 675, 810, 900, 1350, 1620, 2025, 2579, 2700, 4050, 5158, 7737, 8100, 10316, 12895, 15474, 23211, 25790, 30948, 38685, 46422, 51580, 64475, 69633, 77370, 92844, 116055, 128950, 139266, 154740, 193425, 208899, 232110, 257900, 278532, 348165, 386850, 417798, 464220, 580275, 696330, 773700, 835596, 1044495, 1160550, 1392660, 1740825, 2088990, 2321100, 3481650, 4177980, 5222475, 6963300, 10444950, 20889900]

約数ペア:

[(1, 20889900), (2, 10444950), (3, 6963300), (4, 5222475), (5, 4177980), (6, 3481650), (9, 2321100), (10, 2088990), (12, 1740825), (15, 1392660), (18, 1160550), (20, 1044495), (25, 835596), (27, 773700), (30, 696330), (36, 580275), (45, 464220), (50, 417798), (54, 386850), (60, 348165), (75, 278532), (81, 257900), (90, 232110), (100, 208899), (108, 193425), (135, 154740), (150, 139266), (162, 128950), (180, 116055), (225, 92844), (270, 77370), (300, 69633), (324, 64475), (405, 51580), (450, 46422), (540, 38685), (675, 30948), (810, 25790), (900, 23211), (1350, 15474), (1620, 12895), (2025, 10316), (2579, 8100), (2700, 7737), (4050, 5158)]