1236731440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{20261}}^1$

素因数の和:20390

約数の個数: 80

約数和(自身を含む): 3316484160

約数和(自身を除く): 2079752720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 109, 112, 140, 218, 280, 436, 545, 560, 763, 872, 1090, 1526, 1744, 2180, 3052, 3815, 4360, 6104, 7630, 8720, 12208, 15260, 20261, 30520, 40522, 61040, 81044, 101305, 141827, 162088, 202610, 283654, 324176, 405220, 567308, 709135, 810440, 1134616, 1418270, 1620880, 2208449, 2269232, 2836540, 4416898, 5673080, 8833796, 11042245, 11346160, 15459143, 17667592, 22084490, 30918286, 35335184, 44168980, 61836572, 77295715, 88337960, 123673144, 154591430, 176675920, 247346288, 309182860, 618365720, 1236731440]

約数ペア:

[(1, 1236731440), (2, 618365720), (4, 309182860), (5, 247346288), (7, 176675920), (8, 154591430), (10, 123673144), (14, 88337960), (16, 77295715), (20, 61836572), (28, 44168980), (35, 35335184), (40, 30918286), (56, 22084490), (70, 17667592), (80, 15459143), (109, 11346160), (112, 11042245), (140, 8833796), (218, 5673080), (280, 4416898), (436, 2836540), (545, 2269232), (560, 2208449), (763, 1620880), (872, 1418270), (1090, 1134616), (1526, 810440), (1744, 709135), (2180, 567308), (3052, 405220), (3815, 324176), (4360, 283654), (6104, 202610), (7630, 162088), (8720, 141827), (12208, 101305), (15260, 81044), (20261, 61040), (30520, 40522)]