2646140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{461}}^1$

素因数の和:518

約数の個数: 48

約数和(自身を含む): 6519744

約数和(自身を除く): 3873604

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 461, 574, 820, 922, 1148, 1435, 1844, 2305, 2870, 3227, 4610, 5740, 6454, 9220, 12908, 16135, 18901, 32270, 37802, 64540, 75604, 94505, 132307, 189010, 264614, 378020, 529228, 661535, 1323070, 2646140]

約数ペア:

[(1, 2646140), (2, 1323070), (4, 661535), (5, 529228), (7, 378020), (10, 264614), (14, 189010), (20, 132307), (28, 94505), (35, 75604), (41, 64540), (70, 37802), (82, 32270), (140, 18901), (164, 16135), (205, 12908), (287, 9220), (410, 6454), (461, 5740), (574, 4610), (820, 3227), (922, 2870), (1148, 2305), (1435, 1844)]