66971560

素因数分解:

$2^3\times 5^1\times {\mathrm{1674289}}^1$

素因数の和:1674300

約数の個数: 16

約数和(自身を含む): 150686100

約数和(自身を除く): 83714540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1674289, 3348578, 6697156, 8371445, 13394312, 16742890, 33485780, 66971560]

約数ペア:

[(1, 66971560), (2, 33485780), (4, 16742890), (5, 13394312), (8, 8371445), (10, 6697156), (20, 3348578), (40, 1674289)]