639256572

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{211}}^1\times {\mathrm{3659}}^1$

素因数の和:3903

約数の個数: 72

約数和(自身を含む): 1694609280

約数和(自身を除く): 1055352708

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 207, 211, 276, 414, 422, 633, 828, 844, 1266, 1899, 2532, 3659, 3798, 4853, 7318, 7596, 9706, 10977, 14559, 14636, 19412, 21954, 29118, 32931, 43677, 43908, 58236, 65862, 84157, 87354, 131724, 168314, 174708, 252471, 336628, 504942, 757413, 772049, 1009884, 1514826, 1544098, 2316147, 3029652, 3088196, 4632294, 6948441, 9264588, 13896882, 17757127, 27793764, 35514254, 53271381, 71028508, 106542762, 159814143, 213085524, 319628286, 639256572]

約数ペア:

[(1, 639256572), (2, 319628286), (3, 213085524), (4, 159814143), (6, 106542762), (9, 71028508), (12, 53271381), (18, 35514254), (23, 27793764), (36, 17757127), (46, 13896882), (69, 9264588), (92, 6948441), (138, 4632294), (207, 3088196), (211, 3029652), (276, 2316147), (414, 1544098), (422, 1514826), (633, 1009884), (828, 772049), (844, 757413), (1266, 504942), (1899, 336628), (2532, 252471), (3659, 174708), (3798, 168314), (4853, 131724), (7318, 87354), (7596, 84157), (9706, 65862), (10977, 58236), (14559, 43908), (14636, 43677), (19412, 32931), (21954, 29118)]