20198984980

素因数分解:

$2^2\times 5^1\times {\mathrm{18503}}^1\times {\mathrm{54583}}^1$

素因数の和:73095

約数の個数: 24

約数和(自身を含む): 42420938112

約数和(自身を除く): 22221953132

約数列:

[1, 2, 4, 5, 10, 20, 18503, 37006, 54583, 74012, 92515, 109166, 185030, 218332, 272915, 370060, 545830, 1091660, 1009949249, 2019898498, 4039796996, 5049746245, 10099492490, 20198984980]

約数ペア:

[(1, 20198984980), (2, 10099492490), (4, 5049746245), (5, 4039796996), (10, 2019898498), (20, 1009949249), (18503, 1091660), (37006, 545830), (54583, 370060), (74012, 272915), (92515, 218332), (109166, 185030)]