80011990

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{101281}}^1$

素因数の和:101367

約数の個数: 16

約数和(自身を含む): 145846080

約数和(自身を除く): 65834090

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 101281, 202562, 506405, 1012810, 8001199, 16002398, 40005995, 80011990]

約数ペア:

[(1, 80011990), (2, 40005995), (5, 16002398), (10, 8001199), (79, 1012810), (158, 506405), (395, 202562), (790, 101281)]