81329660

素因数分解:

$2^2\times 5^1\times {\mathrm{1151}}^1\times {\mathrm{3533}}^1$

素因数の和:4693

約数の個数: 24

約数和(自身を含む): 170989056

約数和(自身を除く): 89659396

約数列:

[1, 2, 4, 5, 10, 20, 1151, 2302, 3533, 4604, 5755, 7066, 11510, 14132, 17665, 23020, 35330, 70660, 4066483, 8132966, 16265932, 20332415, 40664830, 81329660]

約数ペア:

[(1, 81329660), (2, 40664830), (4, 20332415), (5, 16265932), (10, 8132966), (20, 4066483), (1151, 70660), (2302, 35330), (3533, 23020), (4604, 17665), (5755, 14132), (7066, 11510)]