20109328

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{40543}}^1$

素因数の和:40582

約数の個数: 20

約数和(自身を含む): 40219648

約数和(自身を除く): 20110320

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 40543, 81086, 162172, 324344, 648688, 1256833, 2513666, 5027332, 10054664, 20109328]

約数ペア:

[(1, 20109328), (2, 10054664), (4, 5027332), (8, 2513666), (16, 1256833), (31, 648688), (62, 324344), (124, 162172), (248, 81086), (496, 40543)]