256644784

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2767}}^1$

素因数の和:2834

約数の個数: 80

約数和(自身を含む): 593104896

約数和(自身を除く): 336460112

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 31, 34, 44, 62, 68, 88, 124, 136, 176, 187, 248, 272, 341, 374, 496, 527, 682, 748, 1054, 1364, 1496, 2108, 2728, 2767, 2992, 4216, 5456, 5534, 5797, 8432, 11068, 11594, 22136, 23188, 30437, 44272, 46376, 47039, 60874, 85777, 92752, 94078, 121748, 171554, 188156, 243496, 343108, 376312, 486992, 517429, 686216, 752624, 943547, 1034858, 1372432, 1458209, 1887094, 2069716, 2916418, 3774188, 4139432, 5832836, 7548376, 8278864, 11665672, 15096752, 16040299, 23331344, 32080598, 64161196, 128322392, 256644784]

約数ペア:

[(1, 256644784), (2, 128322392), (4, 64161196), (8, 32080598), (11, 23331344), (16, 16040299), (17, 15096752), (22, 11665672), (31, 8278864), (34, 7548376), (44, 5832836), (62, 4139432), (68, 3774188), (88, 2916418), (124, 2069716), (136, 1887094), (176, 1458209), (187, 1372432), (248, 1034858), (272, 943547), (341, 752624), (374, 686216), (496, 517429), (527, 486992), (682, 376312), (748, 343108), (1054, 243496), (1364, 188156), (1496, 171554), (2108, 121748), (2728, 94078), (2767, 92752), (2992, 85777), (4216, 60874), (5456, 47039), (5534, 46376), (5797, 44272), (8432, 30437), (11068, 23188), (11594, 22136)]