261019548

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{1319}}^1$

素因数の和:1591

約数の個数: 72

約数和(自身を含む): 691891200

約数和(自身を除く): 430871652

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 207, 239, 276, 414, 478, 717, 828, 956, 1319, 1434, 2151, 2638, 2868, 3957, 4302, 5276, 5497, 7914, 8604, 10994, 11871, 15828, 16491, 21988, 23742, 30337, 32982, 47484, 49473, 60674, 65964, 91011, 98946, 121348, 182022, 197892, 273033, 315241, 364044, 546066, 630482, 945723, 1092132, 1260964, 1891446, 2837169, 3782892, 5674338, 7250543, 11348676, 14501086, 21751629, 29002172, 43503258, 65254887, 87006516, 130509774, 261019548]

約数ペア:

[(1, 261019548), (2, 130509774), (3, 87006516), (4, 65254887), (6, 43503258), (9, 29002172), (12, 21751629), (18, 14501086), (23, 11348676), (36, 7250543), (46, 5674338), (69, 3782892), (92, 2837169), (138, 1891446), (207, 1260964), (239, 1092132), (276, 945723), (414, 630482), (478, 546066), (717, 364044), (828, 315241), (956, 273033), (1319, 197892), (1434, 182022), (2151, 121348), (2638, 98946), (2868, 91011), (3957, 65964), (4302, 60674), (5276, 49473), (5497, 47484), (7914, 32982), (8604, 30337), (10994, 23742), (11871, 21988), (15828, 16491)]