2021073640

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{463549}}^1$

素因数の和:463669

約数の個数: 32

約数和(自身を含む): 4589145000

約数和(自身を除く): 2568071360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 463549, 927098, 1854196, 2317745, 3708392, 4635490, 9270980, 18541960, 50526841, 101053682, 202107364, 252634205, 404214728, 505268410, 1010536820, 2021073640]

約数ペア:

[(1, 2021073640), (2, 1010536820), (4, 505268410), (5, 404214728), (8, 252634205), (10, 202107364), (20, 101053682), (40, 50526841), (109, 18541960), (218, 9270980), (436, 4635490), (545, 3708392), (872, 2317745), (1090, 1854196), (2180, 927098), (4360, 463549)]