20570255

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{271}}^1$

素因数の和:359

約数の個数: 32

約数和(自身を含む): 28200960

約数和(自身を除く): 7630705

約数列:

[1, 5, 17, 19, 47, 85, 95, 235, 271, 323, 799, 893, 1355, 1615, 3995, 4465, 4607, 5149, 12737, 15181, 23035, 25745, 63685, 75905, 87533, 216529, 242003, 437665, 1082645, 1210015, 4114051, 20570255]

約数ペア:

[(1, 20570255), (5, 4114051), (17, 1210015), (19, 1082645), (47, 437665), (85, 242003), (95, 216529), (235, 87533), (271, 75905), (323, 63685), (799, 25745), (893, 23035), (1355, 15181), (1615, 12737), (3995, 5149), (4465, 4607)]