663320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1$

素因数の和:144

約数の個数: 64

約数和(自身を含む): 1797120

約数和(自身を除く): 1133800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 103, 115, 140, 161, 184, 206, 230, 280, 322, 412, 460, 515, 644, 721, 805, 824, 920, 1030, 1288, 1442, 1610, 2060, 2369, 2884, 3220, 3605, 4120, 4738, 5768, 6440, 7210, 9476, 11845, 14420, 16583, 18952, 23690, 28840, 33166, 47380, 66332, 82915, 94760, 132664, 165830, 331660, 663320]

約数ペア:

[(1, 663320), (2, 331660), (4, 165830), (5, 132664), (7, 94760), (8, 82915), (10, 66332), (14, 47380), (20, 33166), (23, 28840), (28, 23690), (35, 18952), (40, 16583), (46, 14420), (56, 11845), (70, 9476), (92, 7210), (103, 6440), (115, 5768), (140, 4738), (161, 4120), (184, 3605), (206, 3220), (230, 2884), (280, 2369), (322, 2060), (412, 1610), (460, 1442), (515, 1288), (644, 1030), (721, 920), (805, 824)]