81048280

素因数分解:

$2^3\times 5^1\times {\mathrm{367}}^1\times {\mathrm{5521}}^1$

素因数の和:5899

約数の個数: 32

約数和(自身を含む): 182888640

約数和(自身を除く): 101840360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 367, 734, 1468, 1835, 2936, 3670, 5521, 7340, 11042, 14680, 22084, 27605, 44168, 55210, 110420, 220840, 2026207, 4052414, 8104828, 10131035, 16209656, 20262070, 40524140, 81048280]

約数ペア:

[(1, 81048280), (2, 40524140), (4, 20262070), (5, 16209656), (8, 10131035), (10, 8104828), (20, 4052414), (40, 2026207), (367, 220840), (734, 110420), (1468, 55210), (1835, 44168), (2936, 27605), (3670, 22084), (5521, 14680), (7340, 11042)]