20784865984

素因数分解:

$2^6\times {\mathrm{1583}}^1\times {\mathrm{205157}}^1$

素因数の和:206752

約数の個数: 28

約数和(自身を含む): 41271224544

約数和(自身を除く): 20486358560

約数列:

[1, 2, 4, 8, 16, 32, 64, 1583, 3166, 6332, 12664, 25328, 50656, 101312, 205157, 410314, 820628, 1641256, 3282512, 6565024, 13130048, 324763531, 649527062, 1299054124, 2598108248, 5196216496, 10392432992, 20784865984]

約数ペア:

[(1, 20784865984), (2, 10392432992), (4, 5196216496), (8, 2598108248), (16, 1299054124), (32, 649527062), (64, 324763531), (1583, 13130048), (3166, 6565024), (6332, 3282512), (12664, 1641256), (25328, 820628), (50656, 410314), (101312, 205157)]