82640560

素因数分解:

$2^4\times 5^1\times {\mathrm{1033007}}^1$

素因数の和:1033020

約数の個数: 20

約数和(自身を含む): 192139488

約数和(自身を除く): 109498928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1033007, 2066014, 4132028, 5165035, 8264056, 10330070, 16528112, 20660140, 41320280, 82640560]

約数ペア:

[(1, 82640560), (2, 41320280), (4, 20660140), (5, 16528112), (8, 10330070), (10, 8264056), (16, 5165035), (20, 4132028), (40, 2066014), (80, 1033007)]