77986120

素因数分解:

$2^3\times 5^1\times {\mathrm{881}}^1\times {\mathrm{2213}}^1$

素因数の和:3105

約数の個数: 32

約数和(自身を含む): 175747320

約数和(自身を除く): 97761200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 881, 1762, 2213, 3524, 4405, 4426, 7048, 8810, 8852, 11065, 17620, 17704, 22130, 35240, 44260, 88520, 1949653, 3899306, 7798612, 9748265, 15597224, 19496530, 38993060, 77986120]

約数ペア:

[(1, 77986120), (2, 38993060), (4, 19496530), (5, 15597224), (8, 9748265), (10, 7798612), (20, 3899306), (40, 1949653), (881, 88520), (1762, 44260), (2213, 35240), (3524, 22130), (4405, 17704), (4426, 17620), (7048, 11065), (8810, 8852)]