28509265

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1\times {\mathrm{443}}^1$

素因数の和:720

約数の個数: 16

約数和(自身を含む): 35015616

約数和(自身を除く): 6506351

約数列:

[1, 5, 61, 211, 305, 443, 1055, 2215, 12871, 27023, 64355, 93473, 135115, 467365, 5701853, 28509265]

約数ペア:

[(1, 28509265), (5, 5701853), (61, 467365), (211, 135115), (305, 93473), (443, 64355), (1055, 27023), (2215, 12871)]