2086840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{257}}^1$

素因数の和:304

約数の個数: 64

約数和(自身を含む): 5572800

約数和(自身を除く): 3485960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 203, 232, 257, 280, 290, 406, 514, 580, 812, 1015, 1028, 1160, 1285, 1624, 1799, 2030, 2056, 2570, 3598, 4060, 5140, 7196, 7453, 8120, 8995, 10280, 14392, 14906, 17990, 29812, 35980, 37265, 52171, 59624, 71960, 74530, 104342, 149060, 208684, 260855, 298120, 417368, 521710, 1043420, 2086840]

約数ペア:

[(1, 2086840), (2, 1043420), (4, 521710), (5, 417368), (7, 298120), (8, 260855), (10, 208684), (14, 149060), (20, 104342), (28, 74530), (29, 71960), (35, 59624), (40, 52171), (56, 37265), (58, 35980), (70, 29812), (116, 17990), (140, 14906), (145, 14392), (203, 10280), (232, 8995), (257, 8120), (280, 7453), (290, 7196), (406, 5140), (514, 4060), (580, 3598), (812, 2570), (1015, 2056), (1028, 2030), (1160, 1799), (1285, 1624)]