71961660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{399787}}^1$

素因数の和:399802

約数の個数: 36

約数和(自身を含む): 218284248

約数和(自身を除く): 146322588

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 399787, 799574, 1199361, 1599148, 1998935, 2398722, 3598083, 3997870, 4797444, 5996805, 7196166, 7995740, 11993610, 14392332, 17990415, 23987220, 35980830, 71961660]

約数ペア:

[(1, 71961660), (2, 35980830), (3, 23987220), (4, 17990415), (5, 14392332), (6, 11993610), (9, 7995740), (10, 7196166), (12, 5996805), (15, 4797444), (18, 3997870), (20, 3598083), (30, 2398722), (36, 1998935), (45, 1599148), (60, 1199361), (90, 799574), (180, 399787)]