27725840

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:240

約数の個数: 80

約数和(自身を含む): 67495680

約数和(自身を除く): 39769840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 79, 80, 82, 107, 158, 164, 205, 214, 316, 328, 395, 410, 428, 535, 632, 656, 790, 820, 856, 1070, 1264, 1580, 1640, 1712, 2140, 3160, 3239, 3280, 4280, 4387, 6320, 6478, 8453, 8560, 8774, 12956, 16195, 16906, 17548, 21935, 25912, 32390, 33812, 35096, 42265, 43870, 51824, 64780, 67624, 70192, 84530, 87740, 129560, 135248, 169060, 175480, 259120, 338120, 346573, 350960, 676240, 693146, 1386292, 1732865, 2772584, 3465730, 5545168, 6931460, 13862920, 27725840]

約数ペア:

[(1, 27725840), (2, 13862920), (4, 6931460), (5, 5545168), (8, 3465730), (10, 2772584), (16, 1732865), (20, 1386292), (40, 693146), (41, 676240), (79, 350960), (80, 346573), (82, 338120), (107, 259120), (158, 175480), (164, 169060), (205, 135248), (214, 129560), (316, 87740), (328, 84530), (395, 70192), (410, 67624), (428, 64780), (535, 51824), (632, 43870), (656, 42265), (790, 35096), (820, 33812), (856, 32390), (1070, 25912), (1264, 21935), (1580, 17548), (1640, 16906), (1712, 16195), (2140, 12956), (3160, 8774), (3239, 8560), (3280, 8453), (4280, 6478), (4387, 6320)]