221475500

素因数分解:

$2^2\times 5^3\times {\mathrm{439}}^1\times {\mathrm{1009}}^1$

素因数の和:1467

約数の個数: 48

約数和(自身を含む): 485284800

約数和(自身を除く): 263809300

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 439, 500, 878, 1009, 1756, 2018, 2195, 4036, 4390, 5045, 8780, 10090, 10975, 20180, 21950, 25225, 43900, 50450, 54875, 100900, 109750, 126125, 219500, 252250, 442951, 504500, 885902, 1771804, 2214755, 4429510, 8859020, 11073775, 22147550, 44295100, 55368875, 110737750, 221475500]

約数ペア:

[(1, 221475500), (2, 110737750), (4, 55368875), (5, 44295100), (10, 22147550), (20, 11073775), (25, 8859020), (50, 4429510), (100, 2214755), (125, 1771804), (250, 885902), (439, 504500), (500, 442951), (878, 252250), (1009, 219500), (1756, 126125), (2018, 109750), (2195, 100900), (4036, 54875), (4390, 50450), (5045, 43900), (8780, 25225), (10090, 21950), (10975, 20180)]