1688240

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{449}}^1$

素因数の和:509

約数の個数: 40

約数和(自身を含む): 4017600

約数和(自身を除く): 2329360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 449, 470, 752, 898, 940, 1796, 1880, 2245, 3592, 3760, 4490, 7184, 8980, 17960, 21103, 35920, 42206, 84412, 105515, 168824, 211030, 337648, 422060, 844120, 1688240]

約数ペア:

[(1, 1688240), (2, 844120), (4, 422060), (5, 337648), (8, 211030), (10, 168824), (16, 105515), (20, 84412), (40, 42206), (47, 35920), (80, 21103), (94, 17960), (188, 8980), (235, 7184), (376, 4490), (449, 3760), (470, 3592), (752, 2245), (898, 1880), (940, 1796)]