199940125

素因数分解:

$5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20773}}^1$

素因数の和:20806

約数の個数: 32

約数和(自身を含む): 311111424

約数和(自身を除く): 111171299

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 125, 175, 275, 385, 875, 1375, 1925, 9625, 20773, 103865, 145411, 228503, 519325, 727055, 1142515, 1599521, 2596625, 3635275, 5712575, 7997605, 18176375, 28562875, 39988025, 199940125]

約数ペア:

[(1, 199940125), (5, 39988025), (7, 28562875), (11, 18176375), (25, 7997605), (35, 5712575), (55, 3635275), (77, 2596625), (125, 1599521), (175, 1142515), (275, 727055), (385, 519325), (875, 228503), (1375, 145411), (1925, 103865), (9625, 20773)]