18270172

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 36288000

約数和(自身を除く): 18017828

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 79, 158, 179, 316, 323, 358, 646, 716, 1292, 1343, 1501, 2686, 3002, 3043, 3401, 5372, 6004, 6086, 6802, 12172, 13604, 14141, 25517, 28282, 51034, 56564, 57817, 102068, 115634, 231268, 240397, 268679, 480794, 537358, 961588, 1074716, 4567543, 9135086, 18270172]

約数ペア:

[(1, 18270172), (2, 9135086), (4, 4567543), (17, 1074716), (19, 961588), (34, 537358), (38, 480794), (68, 268679), (76, 240397), (79, 231268), (158, 115634), (179, 102068), (316, 57817), (323, 56564), (358, 51034), (646, 28282), (716, 25517), (1292, 14141), (1343, 13604), (1501, 12172), (2686, 6802), (3002, 6086), (3043, 6004), (3401, 5372)]