19453420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{491}}^1$

素因数の和:790

約数の個数: 48

約数和(自身を含む): 46948608

約数和(自身を除く): 27495188

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 283, 491, 566, 982, 1132, 1415, 1964, 1981, 2455, 2830, 3437, 3962, 4910, 5660, 6874, 7924, 9820, 9905, 13748, 17185, 19810, 34370, 39620, 68740, 138953, 277906, 555812, 694765, 972671, 1389530, 1945342, 2779060, 3890684, 4863355, 9726710, 19453420]

約数ペア:

[(1, 19453420), (2, 9726710), (4, 4863355), (5, 3890684), (7, 2779060), (10, 1945342), (14, 1389530), (20, 972671), (28, 694765), (35, 555812), (70, 277906), (140, 138953), (283, 68740), (491, 39620), (566, 34370), (982, 19810), (1132, 17185), (1415, 13748), (1964, 9905), (1981, 9820), (2455, 7924), (2830, 6874), (3437, 5660), (3962, 4910)]