1326640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1$

素因数の和:146

約数の個数: 80

約数和(自身を含む): 3714048

約数和(自身を除く): 2387408

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 103, 112, 115, 140, 161, 184, 206, 230, 280, 322, 368, 412, 460, 515, 560, 644, 721, 805, 824, 920, 1030, 1288, 1442, 1610, 1648, 1840, 2060, 2369, 2576, 2884, 3220, 3605, 4120, 4738, 5768, 6440, 7210, 8240, 9476, 11536, 11845, 12880, 14420, 16583, 18952, 23690, 28840, 33166, 37904, 47380, 57680, 66332, 82915, 94760, 132664, 165830, 189520, 265328, 331660, 663320, 1326640]

約数ペア:

[(1, 1326640), (2, 663320), (4, 331660), (5, 265328), (7, 189520), (8, 165830), (10, 132664), (14, 94760), (16, 82915), (20, 66332), (23, 57680), (28, 47380), (35, 37904), (40, 33166), (46, 28840), (56, 23690), (70, 18952), (80, 16583), (92, 14420), (103, 12880), (112, 11845), (115, 11536), (140, 9476), (161, 8240), (184, 7210), (206, 6440), (230, 5768), (280, 4738), (322, 4120), (368, 3605), (412, 3220), (460, 2884), (515, 2576), (560, 2369), (644, 2060), (721, 1840), (805, 1648), (824, 1610), (920, 1442), (1030, 1288)]