28886960

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{8807}}^1$

素因数の和:8861

約数の個数: 40

約数和(自身を含む): 68808096

約数和(自身を除く): 39921136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 8807, 17614, 35228, 44035, 70456, 88070, 140912, 176140, 352280, 361087, 704560, 722174, 1444348, 1805435, 2888696, 3610870, 5777392, 7221740, 14443480, 28886960]

約数ペア:

[(1, 28886960), (2, 14443480), (4, 7221740), (5, 5777392), (8, 3610870), (10, 2888696), (16, 1805435), (20, 1444348), (40, 722174), (41, 704560), (80, 361087), (82, 352280), (164, 176140), (205, 140912), (328, 88070), (410, 70456), (656, 44035), (820, 35228), (1640, 17614), (3280, 8807)]