8021720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{28649}}^1$

素因数の和:28667

約数の個数: 32

約数和(自身を含む): 20628000

約数和(自身を除く): 12606280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 28649, 57298, 114596, 143245, 200543, 229192, 286490, 401086, 572980, 802172, 1002715, 1145960, 1604344, 2005430, 4010860, 8021720]

約数ペア:

[(1, 8021720), (2, 4010860), (4, 2005430), (5, 1604344), (7, 1145960), (8, 1002715), (10, 802172), (14, 572980), (20, 401086), (28, 286490), (35, 229192), (40, 200543), (56, 143245), (70, 114596), (140, 57298), (280, 28649)]