247071740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{367}}^1\times {\mathrm{821}}^1$

素因数の和:1238

約数の個数: 48

約数和(自身を含む): 533602944

約数和(自身を除く): 286531204

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 367, 410, 734, 820, 821, 1468, 1642, 1835, 3284, 3670, 4105, 7340, 8210, 15047, 16420, 30094, 33661, 60188, 67322, 75235, 134644, 150470, 168305, 300940, 301307, 336610, 602614, 673220, 1205228, 1506535, 3013070, 6026140, 12353587, 24707174, 49414348, 61767935, 123535870, 247071740]

約数ペア:

[(1, 247071740), (2, 123535870), (4, 61767935), (5, 49414348), (10, 24707174), (20, 12353587), (41, 6026140), (82, 3013070), (164, 1506535), (205, 1205228), (367, 673220), (410, 602614), (734, 336610), (820, 301307), (821, 300940), (1468, 168305), (1642, 150470), (1835, 134644), (3284, 75235), (3670, 67322), (4105, 60188), (7340, 33661), (8210, 30094), (15047, 16420)]