67776440

素因数分解:

$2^3\times 5^1\times {\mathrm{787}}^1\times {\mathrm{2153}}^1$

素因数の和:2951

約数の個数: 32

約数和(自身を含む): 152761680

約数和(自身を除く): 84985240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 787, 1574, 2153, 3148, 3935, 4306, 6296, 7870, 8612, 10765, 15740, 17224, 21530, 31480, 43060, 86120, 1694411, 3388822, 6777644, 8472055, 13555288, 16944110, 33888220, 67776440]

約数ペア:

[(1, 67776440), (2, 33888220), (4, 16944110), (5, 13555288), (8, 8472055), (10, 6777644), (20, 3388822), (40, 1694411), (787, 86120), (1574, 43060), (2153, 31480), (3148, 21530), (3935, 17224), (4306, 15740), (6296, 10765), (7870, 8612)]