128021200

素因数分解:

$2^4\times 5^2\times {\mathrm{320053}}^1$

素因数の和:320071

約数の個数: 30

約数和(自身を含む): 307571894

約数和(自身を除く): 179550694

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 320053, 640106, 1280212, 1600265, 2560424, 3200530, 5120848, 6401060, 8001325, 12802120, 16002650, 25604240, 32005300, 64010600, 128021200]

約数ペア:

[(1, 128021200), (2, 64010600), (4, 32005300), (5, 25604240), (8, 16002650), (10, 12802120), (16, 8001325), (20, 6401060), (25, 5120848), (40, 3200530), (50, 2560424), (80, 1600265), (100, 1280212), (200, 640106), (400, 320053)]