19256440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{709}}^1$

素因数の和:824

約数の個数: 64

約数和(自身を含む): 50097600

約数和(自身を除く): 30841160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 97, 140, 194, 280, 388, 485, 679, 709, 776, 970, 1358, 1418, 1940, 2716, 2836, 3395, 3545, 3880, 4963, 5432, 5672, 6790, 7090, 9926, 13580, 14180, 19852, 24815, 27160, 28360, 39704, 49630, 68773, 99260, 137546, 198520, 275092, 343865, 481411, 550184, 687730, 962822, 1375460, 1925644, 2407055, 2750920, 3851288, 4814110, 9628220, 19256440]

約数ペア:

[(1, 19256440), (2, 9628220), (4, 4814110), (5, 3851288), (7, 2750920), (8, 2407055), (10, 1925644), (14, 1375460), (20, 962822), (28, 687730), (35, 550184), (40, 481411), (56, 343865), (70, 275092), (97, 198520), (140, 137546), (194, 99260), (280, 68773), (388, 49630), (485, 39704), (679, 28360), (709, 27160), (776, 24815), (970, 19852), (1358, 14180), (1418, 13580), (1940, 9926), (2716, 7090), (2836, 6790), (3395, 5672), (3545, 5432), (3880, 4963)]