19944496

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{379}}^1$

素因数の和:434

約数の個数: 80

約数和(自身を含む): 47496960

約数和(自身を除く): 27552464

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 23, 26, 44, 46, 52, 88, 92, 104, 143, 176, 184, 208, 253, 286, 299, 368, 379, 506, 572, 598, 758, 1012, 1144, 1196, 1516, 2024, 2288, 2392, 3032, 3289, 4048, 4169, 4784, 4927, 6064, 6578, 8338, 8717, 9854, 13156, 16676, 17434, 19708, 26312, 33352, 34868, 39416, 52624, 54197, 66704, 69736, 78832, 95887, 108394, 113321, 139472, 191774, 216788, 226642, 383548, 433576, 453284, 767096, 867152, 906568, 1246531, 1534192, 1813136, 2493062, 4986124, 9972248, 19944496]

約数ペア:

[(1, 19944496), (2, 9972248), (4, 4986124), (8, 2493062), (11, 1813136), (13, 1534192), (16, 1246531), (22, 906568), (23, 867152), (26, 767096), (44, 453284), (46, 433576), (52, 383548), (88, 226642), (92, 216788), (104, 191774), (143, 139472), (176, 113321), (184, 108394), (208, 95887), (253, 78832), (286, 69736), (299, 66704), (368, 54197), (379, 52624), (506, 39416), (572, 34868), (598, 33352), (758, 26312), (1012, 19708), (1144, 17434), (1196, 16676), (1516, 13156), (2024, 9854), (2288, 8717), (2392, 8338), (3032, 6578), (3289, 6064), (4048, 4927), (4169, 4784)]