438160

素因数分解:

$2^4\times 5^1\times {\mathrm{5477}}^1$

素因数の和:5490

約数の個数: 20

約数和(自身を含む): 1018908

約数和(自身を除く): 580748

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 5477, 10954, 21908, 27385, 43816, 54770, 87632, 109540, 219080, 438160]

約数ペア:

[(1, 438160), (2, 219080), (4, 109540), (5, 87632), (8, 54770), (10, 43816), (16, 27385), (20, 21908), (40, 10954), (80, 5477)]