19849480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{70891}}^1$

素因数の和:70909

約数の個数: 32

約数和(自身を含む): 51042240

約数和(自身を除く): 31192760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 70891, 141782, 283564, 354455, 496237, 567128, 708910, 992474, 1417820, 1984948, 2481185, 2835640, 3969896, 4962370, 9924740, 19849480]

約数ペア:

[(1, 19849480), (2, 9924740), (4, 4962370), (5, 3969896), (7, 2835640), (8, 2481185), (10, 1984948), (14, 1417820), (20, 992474), (28, 708910), (35, 567128), (40, 496237), (56, 354455), (70, 283564), (140, 141782), (280, 70891)]