28855600

素因数分解:

$2^4\times 5^2\times {\mathrm{72139}}^1$

素因数の和:72157

約数の個数: 30

約数和(自身を含む): 69326540

約数和(自身を除く): 40470940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 72139, 144278, 288556, 360695, 577112, 721390, 1154224, 1442780, 1803475, 2885560, 3606950, 5771120, 7213900, 14427800, 28855600]

約数ペア:

[(1, 28855600), (2, 14427800), (4, 7213900), (5, 5771120), (8, 3606950), (10, 2885560), (16, 1803475), (20, 1442780), (25, 1154224), (40, 721390), (50, 577112), (80, 360695), (100, 288556), (200, 144278), (400, 72139)]