16161880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{293}}^1$

素因数の和:508

約数の個数: 64

約数和(自身を含む): 41912640

約数和(自身を除く): 25750760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 197, 280, 293, 394, 586, 788, 985, 1172, 1379, 1465, 1576, 1970, 2051, 2344, 2758, 2930, 3940, 4102, 5516, 5860, 6895, 7880, 8204, 10255, 11032, 11720, 13790, 16408, 20510, 27580, 41020, 55160, 57721, 82040, 115442, 230884, 288605, 404047, 461768, 577210, 808094, 1154420, 1616188, 2020235, 2308840, 3232376, 4040470, 8080940, 16161880]

約数ペア:

[(1, 16161880), (2, 8080940), (4, 4040470), (5, 3232376), (7, 2308840), (8, 2020235), (10, 1616188), (14, 1154420), (20, 808094), (28, 577210), (35, 461768), (40, 404047), (56, 288605), (70, 230884), (140, 115442), (197, 82040), (280, 57721), (293, 55160), (394, 41020), (586, 27580), (788, 20510), (985, 16408), (1172, 13790), (1379, 11720), (1465, 11032), (1576, 10255), (1970, 8204), (2051, 7880), (2344, 6895), (2758, 5860), (2930, 5516), (3940, 4102)]