8211320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{15791}}^1$

素因数の和:15815

約数の個数: 32

約数和(自身を含む): 19897920

約数和(自身を除く): 11686600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 15791, 31582, 63164, 78955, 126328, 157910, 205283, 315820, 410566, 631640, 821132, 1026415, 1642264, 2052830, 4105660, 8211320]

約数ペア:

[(1, 8211320), (2, 4105660), (4, 2052830), (5, 1642264), (8, 1026415), (10, 821132), (13, 631640), (20, 410566), (26, 315820), (40, 205283), (52, 157910), (65, 126328), (104, 78955), (130, 63164), (260, 31582), (520, 15791)]