209169928

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{491}}^1$

素因数の和:658

約数の個数: 64

約数和(自身を含む): 442091520

約数和(自身を除く): 232921592

約数列:

[1, 2, 4, 8, 11, 22, 44, 47, 88, 94, 103, 188, 206, 376, 412, 491, 517, 824, 982, 1034, 1133, 1964, 2068, 2266, 3928, 4136, 4532, 4841, 5401, 9064, 9682, 10802, 19364, 21604, 23077, 38728, 43208, 46154, 50573, 53251, 92308, 101146, 106502, 184616, 202292, 213004, 253847, 404584, 426008, 507694, 556303, 1015388, 1112606, 2030776, 2225212, 2376931, 4450424, 4753862, 9507724, 19015448, 26146241, 52292482, 104584964, 209169928]

約数ペア:

[(1, 209169928), (2, 104584964), (4, 52292482), (8, 26146241), (11, 19015448), (22, 9507724), (44, 4753862), (47, 4450424), (88, 2376931), (94, 2225212), (103, 2030776), (188, 1112606), (206, 1015388), (376, 556303), (412, 507694), (491, 426008), (517, 404584), (824, 253847), (982, 213004), (1034, 202292), (1133, 184616), (1964, 106502), (2068, 101146), (2266, 92308), (3928, 53251), (4136, 50573), (4532, 46154), (4841, 43208), (5401, 38728), (9064, 23077), (9682, 21604), (10802, 19364)]