320438144

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{192571}}^1$

素因数の和:192598

約数の個数: 32

約数和(自身を含む): 687482040

約数和(自身を除く): 367043896

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664, 192571, 385142, 770284, 1540568, 2503423, 3081136, 5006846, 6162272, 10013692, 12324544, 20027384, 24649088, 40054768, 80109536, 160219072, 320438144]

約数ペア:

[(1, 320438144), (2, 160219072), (4, 80109536), (8, 40054768), (13, 24649088), (16, 20027384), (26, 12324544), (32, 10013692), (52, 6162272), (64, 5006846), (104, 3081136), (128, 2503423), (208, 1540568), (416, 770284), (832, 385142), (1664, 192571)]