209932480

素因数分解:

$2^6\times 5^1\times {\mathrm{656039}}^1$

素因数の和:656056

約数の個数: 28

約数和(自身を含む): 499902480

約数和(自身を除く): 289970000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 656039, 1312078, 2624156, 3280195, 5248312, 6560390, 10496624, 13120780, 20993248, 26241560, 41986496, 52483120, 104966240, 209932480]

約数ペア:

[(1, 209932480), (2, 104966240), (4, 52483120), (5, 41986496), (8, 26241560), (10, 20993248), (16, 13120780), (20, 10496624), (32, 6560390), (40, 5248312), (64, 3280195), (80, 2624156), (160, 1312078), (320, 656039)]