28487715

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1523}}^1$

素因数の和:1603

約数の個数: 32

約数和(自身を含む): 48280320

約数和(自身を除く): 19792605

約数列:

[1, 3, 5, 15, 29, 43, 87, 129, 145, 215, 435, 645, 1247, 1523, 3741, 4569, 6235, 7615, 18705, 22845, 44167, 65489, 132501, 196467, 220835, 327445, 662505, 982335, 1899181, 5697543, 9495905, 28487715]

約数ペア:

[(1, 28487715), (3, 9495905), (5, 5697543), (15, 1899181), (29, 982335), (43, 662505), (87, 327445), (129, 220835), (145, 196467), (215, 132501), (435, 65489), (645, 44167), (1247, 22845), (1523, 18705), (3741, 7615), (4569, 6235)]