66620216

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{640579}}^1$

素因数の和:640598

約数の個数: 16

約数和(自身を含む): 134521800

約数和(自身を除く): 67901584

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 640579, 1281158, 2562316, 5124632, 8327527, 16655054, 33310108, 66620216]

約数ペア:

[(1, 66620216), (2, 33310108), (4, 16655054), (8, 8327527), (13, 5124632), (26, 2562316), (52, 1281158), (104, 640579)]