20416480

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{18229}}^1$

素因数の和:18251

約数の個数: 48

約数和(自身を含む): 55127520

約数和(自身を除く): 34711040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 18229, 36458, 72916, 91145, 127603, 145832, 182290, 255206, 291664, 364580, 510412, 583328, 638015, 729160, 1020824, 1276030, 1458320, 2041648, 2552060, 2916640, 4083296, 5104120, 10208240, 20416480]

約数ペア:

[(1, 20416480), (2, 10208240), (4, 5104120), (5, 4083296), (7, 2916640), (8, 2552060), (10, 2041648), (14, 1458320), (16, 1276030), (20, 1020824), (28, 729160), (32, 638015), (35, 583328), (40, 510412), (56, 364580), (70, 291664), (80, 255206), (112, 182290), (140, 145832), (160, 127603), (224, 91145), (280, 72916), (560, 36458), (1120, 18229)]