117872780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83009}}^1$

素因数の和:83089

約数の個数: 24

約数和(自身を含む): 251022240

約数和(自身を除く): 133149460

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 83009, 166018, 332036, 415045, 830090, 1660180, 5893639, 11787278, 23574556, 29468195, 58936390, 117872780]

約数ペア:

[(1, 117872780), (2, 58936390), (4, 29468195), (5, 23574556), (10, 11787278), (20, 5893639), (71, 1660180), (142, 830090), (284, 415045), (355, 332036), (710, 166018), (1420, 83009)]