1991971980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{3688837}}^1$

素因数の和:3688855

約数の個数: 48

約数和(自身を含む): 6197247840

約数和(自身を除く): 4205275860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 3688837, 7377674, 11066511, 14755348, 18444185, 22133022, 33199533, 36888370, 44266044, 55332555, 66399066, 73776740, 99598599, 110665110, 132798132, 165997665, 199197198, 221330220, 331995330, 398394396, 497992995, 663990660, 995985990, 1991971980]

約数ペア:

[(1, 1991971980), (2, 995985990), (3, 663990660), (4, 497992995), (5, 398394396), (6, 331995330), (9, 221330220), (10, 199197198), (12, 165997665), (15, 132798132), (18, 110665110), (20, 99598599), (27, 73776740), (30, 66399066), (36, 55332555), (45, 44266044), (54, 36888370), (60, 33199533), (90, 22133022), (108, 18444185), (135, 14755348), (180, 11066511), (270, 7377674), (540, 3688837)]