2180358

素因数分解:

$2^1\times 3^4\times {\mathrm{43}}^1\times {\mathrm{313}}^1$

素因数の和:370

約数の個数: 40

約数和(自身を含む): 5015208

約数和(自身を除く): 2834850

約数列:

[1, 2, 3, 6, 9, 18, 27, 43, 54, 81, 86, 129, 162, 258, 313, 387, 626, 774, 939, 1161, 1878, 2322, 2817, 3483, 5634, 6966, 8451, 13459, 16902, 25353, 26918, 40377, 50706, 80754, 121131, 242262, 363393, 726786, 1090179, 2180358]

約数ペア:

[(1, 2180358), (2, 1090179), (3, 726786), (6, 363393), (9, 242262), (18, 121131), (27, 80754), (43, 50706), (54, 40377), (81, 26918), (86, 25353), (129, 16902), (162, 13459), (258, 8451), (313, 6966), (387, 5634), (626, 3483), (774, 2817), (939, 2322), (1161, 1878)]