20275785

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{5179}}^1$

素因数の和:5222

約数の個数: 32

約数和(自身を含む): 37296000

約数和(自身を除く): 17020215

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 87, 135, 145, 261, 435, 783, 1305, 3915, 5179, 15537, 25895, 46611, 77685, 139833, 150191, 233055, 450573, 699165, 750955, 1351719, 2252865, 4055157, 6758595, 20275785]

約数ペア:

[(1, 20275785), (3, 6758595), (5, 4055157), (9, 2252865), (15, 1351719), (27, 750955), (29, 699165), (45, 450573), (87, 233055), (135, 150191), (145, 139833), (261, 77685), (435, 46611), (783, 25895), (1305, 15537), (3915, 5179)]