39940880

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{443}}^1$

素因数の和:493

約数の個数: 120

約数和(自身を含む): 112974912

約数和(自身を除く): 73034032

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 49, 56, 70, 80, 92, 98, 112, 115, 140, 161, 184, 196, 230, 245, 280, 322, 368, 392, 443, 460, 490, 560, 644, 784, 805, 886, 920, 980, 1127, 1288, 1610, 1772, 1840, 1960, 2215, 2254, 2576, 3101, 3220, 3544, 3920, 4430, 4508, 5635, 6202, 6440, 7088, 8860, 9016, 10189, 11270, 12404, 12880, 15505, 17720, 18032, 20378, 21707, 22540, 24808, 31010, 35440, 40756, 43414, 45080, 49616, 50945, 62020, 71323, 81512, 86828, 90160, 101890, 108535, 124040, 142646, 163024, 173656, 203780, 217070, 248080, 285292, 347312, 356615, 407560, 434140, 499261, 570584, 713230, 815120, 868280, 998522, 1141168, 1426460, 1736560, 1997044, 2496305, 2852920, 3994088, 4992610, 5705840, 7988176, 9985220, 19970440, 39940880]

約数ペア:

[(1, 39940880), (2, 19970440), (4, 9985220), (5, 7988176), (7, 5705840), (8, 4992610), (10, 3994088), (14, 2852920), (16, 2496305), (20, 1997044), (23, 1736560), (28, 1426460), (35, 1141168), (40, 998522), (46, 868280), (49, 815120), (56, 713230), (70, 570584), (80, 499261), (92, 434140), (98, 407560), (112, 356615), (115, 347312), (140, 285292), (161, 248080), (184, 217070), (196, 203780), (230, 173656), (245, 163024), (280, 142646), (322, 124040), (368, 108535), (392, 101890), (443, 90160), (460, 86828), (490, 81512), (560, 71323), (644, 62020), (784, 50945), (805, 49616), (886, 45080), (920, 43414), (980, 40756), (1127, 35440), (1288, 31010), (1610, 24808), (1772, 22540), (1840, 21707), (1960, 20378), (2215, 18032), (2254, 17720), (2576, 15505), (3101, 12880), (3220, 12404), (3544, 11270), (3920, 10189), (4430, 9016), (4508, 8860), (5635, 7088), (6202, 6440)]