20172908980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{20584601}}^1$

素因数の和:20584624

約数の個数: 36

約数和(自身を含む): 49279537188

約数和(自身を除く): 29106628208

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 20584601, 41169202, 82338404, 102923005, 144092207, 205846010, 288184414, 411692020, 576368828, 720461035, 1008645449, 1440922070, 2017290898, 2881844140, 4034581796, 5043227245, 10086454490, 20172908980]

約数ペア:

[(1, 20172908980), (2, 10086454490), (4, 5043227245), (5, 4034581796), (7, 2881844140), (10, 2017290898), (14, 1440922070), (20, 1008645449), (28, 720461035), (35, 576368828), (49, 411692020), (70, 288184414), (98, 205846010), (140, 144092207), (196, 102923005), (245, 82338404), (490, 41169202), (980, 20584601)]