20245275

素因数分解:

$3^3\times 5^2\times {\mathrm{89}}^1\times {\mathrm{337}}^1$

素因数の和:445

約数の個数: 48

約数和(自身を含む): 37720800

約数和(自身を除く): 17475525

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 89, 135, 225, 267, 337, 445, 675, 801, 1011, 1335, 1685, 2225, 2403, 3033, 4005, 5055, 6675, 8425, 9099, 12015, 15165, 20025, 25275, 29993, 45495, 60075, 75825, 89979, 149965, 227475, 269937, 449895, 749825, 809811, 1349685, 2249475, 4049055, 6748425, 20245275]

約数ペア:

[(1, 20245275), (3, 6748425), (5, 4049055), (9, 2249475), (15, 1349685), (25, 809811), (27, 749825), (45, 449895), (75, 269937), (89, 227475), (135, 149965), (225, 89979), (267, 75825), (337, 60075), (445, 45495), (675, 29993), (801, 25275), (1011, 20025), (1335, 15165), (1685, 12015), (2225, 9099), (2403, 8425), (3033, 6675), (4005, 5055)]