19772900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{601}}^1$

素因数の和:669

約数の個数: 72

約数和(自身を含む): 50163456

約数和(自身を除く): 30390556

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 47, 50, 70, 94, 100, 140, 175, 188, 235, 329, 350, 470, 601, 658, 700, 940, 1175, 1202, 1316, 1645, 2350, 2404, 3005, 3290, 4207, 4700, 6010, 6580, 8225, 8414, 12020, 15025, 16450, 16828, 21035, 28247, 30050, 32900, 42070, 56494, 60100, 84140, 105175, 112988, 141235, 197729, 210350, 282470, 395458, 420700, 564940, 706175, 790916, 988645, 1412350, 1977290, 2824700, 3954580, 4943225, 9886450, 19772900]

約数ペア:

[(1, 19772900), (2, 9886450), (4, 4943225), (5, 3954580), (7, 2824700), (10, 1977290), (14, 1412350), (20, 988645), (25, 790916), (28, 706175), (35, 564940), (47, 420700), (50, 395458), (70, 282470), (94, 210350), (100, 197729), (140, 141235), (175, 112988), (188, 105175), (235, 84140), (329, 60100), (350, 56494), (470, 42070), (601, 32900), (658, 30050), (700, 28247), (940, 21035), (1175, 16828), (1202, 16450), (1316, 15025), (1645, 12020), (2350, 8414), (2404, 8225), (3005, 6580), (3290, 6010), (4207, 4700)]