1235740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 2921184

約数和(自身を除く): 1685444

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 137, 164, 205, 220, 274, 410, 451, 548, 685, 820, 902, 1370, 1507, 1804, 2255, 2740, 3014, 4510, 5617, 6028, 7535, 9020, 11234, 15070, 22468, 28085, 30140, 56170, 61787, 112340, 123574, 247148, 308935, 617870, 1235740]

約数ペア:

[(1, 1235740), (2, 617870), (4, 308935), (5, 247148), (10, 123574), (11, 112340), (20, 61787), (22, 56170), (41, 30140), (44, 28085), (55, 22468), (82, 15070), (110, 11234), (137, 9020), (164, 7535), (205, 6028), (220, 5617), (274, 4510), (410, 3014), (451, 2740), (548, 2255), (685, 1804), (820, 1507), (902, 1370)]