15908720

素因数分解:

$2^4\times 5^1\times {\mathrm{198859}}^1$

素因数の和:198872

約数の個数: 20

約数和(自身を含む): 36987960

約数和(自身を除く): 21079240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 198859, 397718, 795436, 994295, 1590872, 1988590, 3181744, 3977180, 7954360, 15908720]

約数ペア:

[(1, 15908720), (2, 7954360), (4, 3977180), (5, 3181744), (8, 1988590), (10, 1590872), (16, 994295), (20, 795436), (40, 397718), (80, 198859)]