12178640

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:180

約数の個数: 80

約数和(自身を含む): 29998080

約数和(自身を除く): 17819440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 47, 79, 80, 82, 94, 158, 164, 188, 205, 235, 316, 328, 376, 395, 410, 470, 632, 656, 752, 790, 820, 940, 1264, 1580, 1640, 1880, 1927, 3160, 3239, 3280, 3713, 3760, 3854, 6320, 6478, 7426, 7708, 9635, 12956, 14852, 15416, 16195, 18565, 19270, 25912, 29704, 30832, 32390, 37130, 38540, 51824, 59408, 64780, 74260, 77080, 129560, 148520, 152233, 154160, 259120, 297040, 304466, 608932, 761165, 1217864, 1522330, 2435728, 3044660, 6089320, 12178640]

約数ペア:

[(1, 12178640), (2, 6089320), (4, 3044660), (5, 2435728), (8, 1522330), (10, 1217864), (16, 761165), (20, 608932), (40, 304466), (41, 297040), (47, 259120), (79, 154160), (80, 152233), (82, 148520), (94, 129560), (158, 77080), (164, 74260), (188, 64780), (205, 59408), (235, 51824), (316, 38540), (328, 37130), (376, 32390), (395, 30832), (410, 29704), (470, 25912), (632, 19270), (656, 18565), (752, 16195), (790, 15416), (820, 14852), (940, 12956), (1264, 9635), (1580, 7708), (1640, 7426), (1880, 6478), (1927, 6320), (3160, 3854), (3239, 3760), (3280, 3713)]