2179805840

素因数分解:

$2^4\times 5^1\times {\mathrm{27247573}}^1$

素因数の和:27247586

約数の個数: 20

約数和(自身を含む): 5068048764

約数和(自身を除く): 2888242924

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 27247573, 54495146, 108990292, 136237865, 217980584, 272475730, 435961168, 544951460, 1089902920, 2179805840]

約数ペア:

[(1, 2179805840), (2, 1089902920), (4, 544951460), (5, 435961168), (8, 272475730), (10, 217980584), (16, 136237865), (20, 108990292), (40, 54495146), (80, 27247573)]