199248775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{1721}}^1$

素因数の和:2163

約数の個数: 24

約数和(自身を含む): 270326448

約数和(自身を除く): 71077673

約数列:

[1, 5, 11, 25, 55, 275, 421, 1721, 2105, 4631, 8605, 10525, 18931, 23155, 43025, 94655, 115775, 473275, 724541, 3622705, 7969951, 18113525, 39849755, 199248775]

約数ペア:

[(1, 199248775), (5, 39849755), (11, 18113525), (25, 7969951), (55, 3622705), (275, 724541), (421, 473275), (1721, 115775), (2105, 94655), (4631, 43025), (8605, 23155), (10525, 18931)]