271640440

素因数分解:

$2^3\times 5^1\times {\mathrm{2591}}^1\times {\mathrm{2621}}^1$

素因数の和:5223

約数の個数: 32

約数和(自身を含む): 611660160

約数和(自身を除く): 340019720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2591, 2621, 5182, 5242, 10364, 10484, 12955, 13105, 20728, 20968, 25910, 26210, 51820, 52420, 103640, 104840, 6791011, 13582022, 27164044, 33955055, 54328088, 67910110, 135820220, 271640440]

約数ペア:

[(1, 271640440), (2, 135820220), (4, 67910110), (5, 54328088), (8, 33955055), (10, 27164044), (20, 13582022), (40, 6791011), (2591, 104840), (2621, 103640), (5182, 52420), (5242, 51820), (10364, 26210), (10484, 25910), (12955, 20968), (13105, 20728)]