19838960

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{4679}}^1$

素因数の和:4745

約数の個数: 40

約数和(自身を含む): 47005920

約数和(自身を除く): 27166960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 4679, 9358, 18716, 23395, 37432, 46790, 74864, 93580, 187160, 247987, 374320, 495974, 991948, 1239935, 1983896, 2479870, 3967792, 4959740, 9919480, 19838960]

約数ペア:

[(1, 19838960), (2, 9919480), (4, 4959740), (5, 3967792), (8, 2479870), (10, 1983896), (16, 1239935), (20, 991948), (40, 495974), (53, 374320), (80, 247987), (106, 187160), (212, 93580), (265, 74864), (424, 46790), (530, 37432), (848, 23395), (1060, 18716), (2120, 9358), (4240, 4679)]