39890260

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{25247}}^1$

素因数の和:25335

約数の個数: 24

約数和(自身を含む): 84833280

約数和(自身を除く): 44943020

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 25247, 50494, 100988, 126235, 252470, 504940, 1994513, 3989026, 7978052, 9972565, 19945130, 39890260]

約数ペア:

[(1, 39890260), (2, 19945130), (4, 9972565), (5, 7978052), (10, 3989026), (20, 1994513), (79, 504940), (158, 252470), (316, 126235), (395, 100988), (790, 50494), (1580, 25247)]