28201615

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{1601}}^1$

素因数の和:1890

約数の個数: 16

約数和(自身を含む): 36602496

約数和(自身を除く): 8400881

約数列:

[1, 5, 13, 65, 271, 1355, 1601, 3523, 8005, 17615, 20813, 104065, 433871, 2169355, 5640323, 28201615]

約数ペア:

[(1, 28201615), (5, 5640323), (13, 2169355), (65, 433871), (271, 104065), (1355, 20813), (1601, 17615), (3523, 8005)]