20198390

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{439}}^1$

素因数の和:596

約数の個数: 32

約数和(自身を含む): 37635840

約数和(自身を除く): 17437450

約数列:

[1, 2, 5, 10, 43, 86, 107, 214, 215, 430, 439, 535, 878, 1070, 2195, 4390, 4601, 9202, 18877, 23005, 37754, 46010, 46973, 93946, 94385, 188770, 234865, 469730, 2019839, 4039678, 10099195, 20198390]

約数ペア:

[(1, 20198390), (2, 10099195), (5, 4039678), (10, 2019839), (43, 469730), (86, 234865), (107, 188770), (214, 94385), (215, 93946), (430, 46973), (439, 46010), (535, 37754), (878, 23005), (1070, 18877), (2195, 9202), (4390, 4601)]