20056475990

素因数分解:

$2^1\times 5^1\times {\mathrm{6491}}^1\times {\mathrm{308989}}^1$

素因数の和:315487

約数の個数: 16

約数和(自身を含む): 36107335440

約数和(自身を除く): 16050859450

約数列:

[1, 2, 5, 10, 6491, 12982, 32455, 64910, 308989, 617978, 1544945, 3089890, 2005647599, 4011295198, 10028237995, 20056475990]

約数ペア:

[(1, 20056475990), (2, 10028237995), (5, 4011295198), (10, 2005647599), (6491, 3089890), (12982, 1544945), (32455, 617978), (64910, 308989)]