20545648

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{8179}}^1$

素因数の和:8344

約数の個数: 20

約数和(自身を含む): 40065640

約数和(自身を除く): 19519992

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 1256, 2512, 8179, 16358, 32716, 65432, 130864, 1284103, 2568206, 5136412, 10272824, 20545648]

約数ペア:

[(1, 20545648), (2, 10272824), (4, 5136412), (8, 2568206), (16, 1284103), (157, 130864), (314, 65432), (628, 32716), (1256, 16358), (2512, 8179)]