66779560

素因数分解:

$2^3\times 5^1\times {\mathrm{1669489}}^1$

素因数の和:1669500

約数の個数: 16

約数和(自身を含む): 150254100

約数和(自身を除く): 83474540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1669489, 3338978, 6677956, 8347445, 13355912, 16694890, 33389780, 66779560]

約数ペア:

[(1, 66779560), (2, 33389780), (4, 16694890), (5, 13355912), (8, 8347445), (10, 6677956), (20, 3338978), (40, 1669489)]