204613480

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{72047}}^1$

素因数の和:72129

約数の個数: 32

約数和(自身を含む): 466871040

約数和(自身を除く): 262257560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 72047, 144094, 288188, 360235, 576376, 720470, 1440940, 2881880, 5115337, 10230674, 20461348, 25576685, 40922696, 51153370, 102306740, 204613480]

約数ペア:

[(1, 204613480), (2, 102306740), (4, 51153370), (5, 40922696), (8, 25576685), (10, 20461348), (20, 10230674), (40, 5115337), (71, 2881880), (142, 1440940), (284, 720470), (355, 576376), (568, 360235), (710, 288188), (1420, 144094), (2840, 72047)]