20968240

素因数分解:

$2^4\times 5^1\times {\mathrm{262103}}^1$

素因数の和:262116

約数の個数: 20

約数和(自身を含む): 48751344

約数和(自身を除く): 27783104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 262103, 524206, 1048412, 1310515, 2096824, 2621030, 4193648, 5242060, 10484120, 20968240]

約数ペア:

[(1, 20968240), (2, 10484120), (4, 5242060), (5, 4193648), (8, 2621030), (10, 2096824), (16, 1310515), (20, 1048412), (40, 524206), (80, 262103)]