85130440

素因数分解:

$2^3\times 5^1\times {\mathrm{2128261}}^1$

素因数の和:2128272

約数の個数: 16

約数和(自身を含む): 191543580

約数和(自身を除く): 106413140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2128261, 4256522, 8513044, 10641305, 17026088, 21282610, 42565220, 85130440]

約数ペア:

[(1, 85130440), (2, 42565220), (4, 21282610), (5, 17026088), (8, 10641305), (10, 8513044), (20, 4256522), (40, 2128261)]