20080816

素因数分解:

$2^4\times 7^1\times {\mathrm{41}}^1\times {\mathrm{4373}}^1$

素因数の和:4429

約数の個数: 40

約数和(自身を含む): 45559584

約数和(自身を除く): 25478768

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 41, 56, 82, 112, 164, 287, 328, 574, 656, 1148, 2296, 4373, 4592, 8746, 17492, 30611, 34984, 61222, 69968, 122444, 179293, 244888, 358586, 489776, 717172, 1255051, 1434344, 2510102, 2868688, 5020204, 10040408, 20080816]

約数ペア:

[(1, 20080816), (2, 10040408), (4, 5020204), (7, 2868688), (8, 2510102), (14, 1434344), (16, 1255051), (28, 717172), (41, 489776), (56, 358586), (82, 244888), (112, 179293), (164, 122444), (287, 69968), (328, 61222), (574, 34984), (656, 30611), (1148, 17492), (2296, 8746), (4373, 4592)]