25015480

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{12763}}^1$

素因数の和:12788

約数の個数: 48

約数和(自身を含む): 65479320

約数和(自身を除く): 40463840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 12763, 25526, 51052, 63815, 89341, 102104, 127630, 178682, 255260, 357364, 446705, 510520, 625387, 714728, 893410, 1250774, 1786820, 2501548, 3126935, 3573640, 5003096, 6253870, 12507740, 25015480]

約数ペア:

[(1, 25015480), (2, 12507740), (4, 6253870), (5, 5003096), (7, 3573640), (8, 3126935), (10, 2501548), (14, 1786820), (20, 1250774), (28, 893410), (35, 714728), (40, 625387), (49, 510520), (56, 446705), (70, 357364), (98, 255260), (140, 178682), (196, 127630), (245, 102104), (280, 89341), (392, 63815), (490, 51052), (980, 25526), (1960, 12763)]