28249845

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{523}}^1$

素因数の和:821

約数の個数: 32

約数和(自身を含む): 48945792

約数和(自身を除く): 20695947

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 277, 523, 831, 1385, 1569, 2615, 3601, 4155, 6799, 7845, 10803, 18005, 20397, 33995, 54015, 101985, 144871, 434613, 724355, 1883323, 2173065, 5649969, 9416615, 28249845]

約数ペア:

[(1, 28249845), (3, 9416615), (5, 5649969), (13, 2173065), (15, 1883323), (39, 724355), (65, 434613), (195, 144871), (277, 101985), (523, 54015), (831, 33995), (1385, 20397), (1569, 18005), (2615, 10803), (3601, 7845), (4155, 6799)]