2822440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1721}}^1$

素因数の和:1773

約数の個数: 32

約数和(自身を含む): 6509160

約数和(自身を除く): 3686720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 1721, 3442, 6884, 8605, 13768, 17210, 34420, 68840, 70561, 141122, 282244, 352805, 564488, 705610, 1411220, 2822440]

約数ペア:

[(1, 2822440), (2, 1411220), (4, 705610), (5, 564488), (8, 352805), (10, 282244), (20, 141122), (40, 70561), (41, 68840), (82, 34420), (164, 17210), (205, 13768), (328, 8605), (410, 6884), (820, 3442), (1640, 1721)]