20180936165

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{811}}^1\times {\mathrm{20149}}^1$

素因数の和:20997

約数の個数: 32

約数和(自身を含む): 27487824000

約数和(自身を除く): 7306887835

約数列:

[1, 5, 13, 19, 65, 95, 247, 811, 1235, 4055, 10543, 15409, 20149, 52715, 77045, 100745, 200317, 261937, 382831, 1001585, 1309685, 1914155, 4976803, 16340839, 24884015, 81704195, 212430907, 310475941, 1062154535, 1552379705, 4036187233, 20180936165]

約数ペア:

[(1, 20180936165), (5, 4036187233), (13, 1552379705), (19, 1062154535), (65, 310475941), (95, 212430907), (247, 81704195), (811, 24884015), (1235, 16340839), (4055, 4976803), (10543, 1914155), (15409, 1309685), (20149, 1001585), (52715, 382831), (77045, 261937), (100745, 200317)]