80087840

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3109}}^1$

素因数の和:3154

約数の個数: 96

約数和(自身を含む): 225711360

約数和(自身を除く): 145623520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 160, 161, 184, 224, 230, 280, 322, 368, 460, 560, 644, 736, 805, 920, 1120, 1288, 1610, 1840, 2576, 3109, 3220, 3680, 5152, 6218, 6440, 12436, 12880, 15545, 21763, 24872, 25760, 31090, 43526, 49744, 62180, 71507, 87052, 99488, 108815, 124360, 143014, 174104, 217630, 248720, 286028, 348208, 357535, 435260, 497440, 500549, 572056, 696416, 715070, 870520, 1001098, 1144112, 1430140, 1741040, 2002196, 2288224, 2502745, 2860280, 3482080, 4004392, 5005490, 5720560, 8008784, 10010980, 11441120, 16017568, 20021960, 40043920, 80087840]

約数ペア:

[(1, 80087840), (2, 40043920), (4, 20021960), (5, 16017568), (7, 11441120), (8, 10010980), (10, 8008784), (14, 5720560), (16, 5005490), (20, 4004392), (23, 3482080), (28, 2860280), (32, 2502745), (35, 2288224), (40, 2002196), (46, 1741040), (56, 1430140), (70, 1144112), (80, 1001098), (92, 870520), (112, 715070), (115, 696416), (140, 572056), (160, 500549), (161, 497440), (184, 435260), (224, 357535), (230, 348208), (280, 286028), (322, 248720), (368, 217630), (460, 174104), (560, 143014), (644, 124360), (736, 108815), (805, 99488), (920, 87052), (1120, 71507), (1288, 62180), (1610, 49744), (1840, 43526), (2576, 31090), (3109, 25760), (3220, 24872), (3680, 21763), (5152, 15545), (6218, 12880), (6440, 12436)]