66539120

素因数分解:

$2^4\times 5^1\times {\mathrm{831739}}^1$

素因数の和:831752

約数の個数: 20

約数和(自身を含む): 154703640

約数和(自身を除く): 88164520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 831739, 1663478, 3326956, 4158695, 6653912, 8317390, 13307824, 16634780, 33269560, 66539120]

約数ペア:

[(1, 66539120), (2, 33269560), (4, 16634780), (5, 13307824), (8, 8317390), (10, 6653912), (16, 4158695), (20, 3326956), (40, 1663478), (80, 831739)]