20179764

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{389}}^1$

素因数の和:541

約数の個数: 72

約数和(自身を含む): 56216160

約数和(自身を除く): 36036396

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 131, 132, 198, 262, 389, 393, 396, 524, 778, 786, 1167, 1179, 1441, 1556, 1572, 2334, 2358, 2882, 3501, 4279, 4323, 4668, 4716, 5764, 7002, 8558, 8646, 12837, 12969, 14004, 17116, 17292, 25674, 25938, 38511, 50959, 51348, 51876, 77022, 101918, 152877, 154044, 203836, 305754, 458631, 560549, 611508, 917262, 1121098, 1681647, 1834524, 2242196, 3363294, 5044941, 6726588, 10089882, 20179764]

約数ペア:

[(1, 20179764), (2, 10089882), (3, 6726588), (4, 5044941), (6, 3363294), (9, 2242196), (11, 1834524), (12, 1681647), (18, 1121098), (22, 917262), (33, 611508), (36, 560549), (44, 458631), (66, 305754), (99, 203836), (131, 154044), (132, 152877), (198, 101918), (262, 77022), (389, 51876), (393, 51348), (396, 50959), (524, 38511), (778, 25938), (786, 25674), (1167, 17292), (1179, 17116), (1441, 14004), (1556, 12969), (1572, 12837), (2334, 8646), (2358, 8558), (2882, 7002), (3501, 5764), (4279, 4716), (4323, 4668)]