28740942

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{523}}^1$

素因数の和:645

約数の個数: 48

約数和(自身を含む): 64741248

約数和(自身を除く): 36000306

約数列:

[1, 2, 3, 6, 9, 18, 43, 71, 86, 129, 142, 213, 258, 387, 426, 523, 639, 774, 1046, 1278, 1569, 3053, 3138, 4707, 6106, 9159, 9414, 18318, 22489, 27477, 37133, 44978, 54954, 67467, 74266, 111399, 134934, 202401, 222798, 334197, 404802, 668394, 1596719, 3193438, 4790157, 9580314, 14370471, 28740942]

約数ペア:

[(1, 28740942), (2, 14370471), (3, 9580314), (6, 4790157), (9, 3193438), (18, 1596719), (43, 668394), (71, 404802), (86, 334197), (129, 222798), (142, 202401), (213, 134934), (258, 111399), (387, 74266), (426, 67467), (523, 54954), (639, 44978), (774, 37133), (1046, 27477), (1278, 22489), (1569, 18318), (3053, 9414), (3138, 9159), (4707, 6106)]