4171640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{499}}^1$

素因数の和:540

約数の個数: 64

約数和(自身を含む): 10800000

約数和(自身を除く): 6628360

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 209, 220, 380, 418, 440, 499, 760, 836, 998, 1045, 1672, 1996, 2090, 2495, 3992, 4180, 4990, 5489, 8360, 9481, 9980, 10978, 18962, 19960, 21956, 27445, 37924, 43912, 47405, 54890, 75848, 94810, 104291, 109780, 189620, 208582, 219560, 379240, 417164, 521455, 834328, 1042910, 2085820, 4171640]

約数ペア:

[(1, 4171640), (2, 2085820), (4, 1042910), (5, 834328), (8, 521455), (10, 417164), (11, 379240), (19, 219560), (20, 208582), (22, 189620), (38, 109780), (40, 104291), (44, 94810), (55, 75848), (76, 54890), (88, 47405), (95, 43912), (110, 37924), (152, 27445), (190, 21956), (209, 19960), (220, 18962), (380, 10978), (418, 9980), (440, 9481), (499, 8360), (760, 5489), (836, 4990), (998, 4180), (1045, 3992), (1672, 2495), (1996, 2090)]