71442760

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{13037}}^1$

素因数の和:13185

約数の個数: 32

約数和(自身を含む): 161931960

約数和(自身を除く): 90489200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 13037, 26074, 52148, 65185, 104296, 130370, 260740, 521480, 1786069, 3572138, 7144276, 8930345, 14288552, 17860690, 35721380, 71442760]

約数ペア:

[(1, 71442760), (2, 35721380), (4, 17860690), (5, 14288552), (8, 8930345), (10, 7144276), (20, 3572138), (40, 1786069), (137, 521480), (274, 260740), (548, 130370), (685, 104296), (1096, 65185), (1370, 52148), (2740, 26074), (5480, 13037)]