804220

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{509}}^1$

素因数の和:597

約数の個数: 24

約数和(自身を含む): 1713600

約数和(自身を除く): 909380

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 509, 790, 1018, 1580, 2036, 2545, 5090, 10180, 40211, 80422, 160844, 201055, 402110, 804220]

約数ペア:

[(1, 804220), (2, 402110), (4, 201055), (5, 160844), (10, 80422), (20, 40211), (79, 10180), (158, 5090), (316, 2545), (395, 2036), (509, 1580), (790, 1018)]