199986140

素因数分解:

$2^2\times 5^1\times {\mathrm{769}}^1\times {\mathrm{13003}}^1$

素因数の和:13781

約数の個数: 24

約数和(自身を含む): 420549360

約数和(自身を除く): 220563220

約数列:

[1, 2, 4, 5, 10, 20, 769, 1538, 3076, 3845, 7690, 13003, 15380, 26006, 52012, 65015, 130030, 260060, 9999307, 19998614, 39997228, 49996535, 99993070, 199986140]

約数ペア:

[(1, 199986140), (2, 99993070), (4, 49996535), (5, 39997228), (10, 19998614), (20, 9999307), (769, 260060), (1538, 130030), (3076, 65015), (3845, 52012), (7690, 26006), (13003, 15380)]