639804585

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{59159}}^1$

素因数の和:59277

約数の個数: 32

約数和(自身を含む): 1181306880

約数和(自身を除く): 541502295

約数列:

[1, 3, 5, 7, 15, 21, 35, 103, 105, 309, 515, 721, 1545, 2163, 3605, 10815, 59159, 177477, 295795, 414113, 887385, 1242339, 2070565, 6093377, 6211695, 18280131, 30466885, 42653639, 91400655, 127960917, 213268195, 639804585]

約数ペア:

[(1, 639804585), (3, 213268195), (5, 127960917), (7, 91400655), (15, 42653639), (21, 30466885), (35, 18280131), (103, 6211695), (105, 6093377), (309, 2070565), (515, 1242339), (721, 887385), (1545, 414113), (2163, 295795), (3605, 177477), (10815, 59159)]