81783196

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{557}}^1$

素因数の和:690

約数の個数: 48

約数和(自身を含む): 161989632

約数和(自身を除く): 80206436

約数列:

[1, 2, 4, 11, 22, 44, 47, 71, 94, 142, 188, 284, 517, 557, 781, 1034, 1114, 1562, 2068, 2228, 3124, 3337, 6127, 6674, 12254, 13348, 24508, 26179, 36707, 39547, 52358, 73414, 79094, 104716, 146828, 158188, 287969, 435017, 575938, 870034, 1151876, 1740068, 1858709, 3717418, 7434836, 20445799, 40891598, 81783196]

約数ペア:

[(1, 81783196), (2, 40891598), (4, 20445799), (11, 7434836), (22, 3717418), (44, 1858709), (47, 1740068), (71, 1151876), (94, 870034), (142, 575938), (188, 435017), (284, 287969), (517, 158188), (557, 146828), (781, 104716), (1034, 79094), (1114, 73414), (1562, 52358), (2068, 39547), (2228, 36707), (3124, 26179), (3337, 24508), (6127, 13348), (6674, 12254)]