20120139865

素因数分解:

$5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2063}}^1\times {\mathrm{4159}}^1$

素因数の和:6301

約数の個数: 32

約数和(自身を含む): 28025487360

約数和(自身を除く): 7905347495

約数列:

[1, 5, 7, 35, 67, 335, 469, 2063, 2345, 4159, 10315, 14441, 20795, 29113, 72205, 138221, 145565, 278653, 691105, 967547, 1393265, 1950571, 4837735, 8580017, 9752855, 42900085, 60060119, 300300595, 574861139, 2874305695, 4024027973, 20120139865]

約数ペア:

[(1, 20120139865), (5, 4024027973), (7, 2874305695), (35, 574861139), (67, 300300595), (335, 60060119), (469, 42900085), (2063, 9752855), (2345, 8580017), (4159, 4837735), (10315, 1950571), (14441, 1393265), (20795, 967547), (29113, 691105), (72205, 278653), (138221, 145565)]