40043920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3109}}^1$

素因数の和:3152

約数の個数: 80

約数和(自身を含む): 111064320

約数和(自身を除く): 71020400

約数列:

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

約数ペア:

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