81631228

素因数分解:

$2^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{39937}}^1$

素因数の和:40021

約数の個数: 24

約数和(自身を含む): 165503072

約数和(自身を除く): 83871844

約数列:

[1, 2, 4, 7, 14, 28, 73, 146, 292, 511, 1022, 2044, 39937, 79874, 159748, 279559, 559118, 1118236, 2915401, 5830802, 11661604, 20407807, 40815614, 81631228]

約数ペア:

[(1, 81631228), (2, 40815614), (4, 20407807), (7, 11661604), (14, 5830802), (28, 2915401), (73, 1118236), (146, 559118), (292, 279559), (511, 159748), (1022, 79874), (2044, 39937)]