20805364330

素因数分解:

$2^1\times 5^1\times {\mathrm{80513}}^1\times {\mathrm{25841}}^1$

素因数の和:106361

約数の個数: 16

約数和(自身を含む): 37451570184

約数和(自身を除く): 16646205854

約数列:

[1, 2, 5, 10, 25841, 51682, 80513, 129205, 161026, 258410, 402565, 805130, 2080536433, 4161072866, 10402682165, 20805364330]

約数ペア:

[(1, 20805364330), (2, 10402682165), (5, 4161072866), (10, 2080536433), (25841, 805130), (51682, 402565), (80513, 258410), (129205, 161026)]