20918568

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:175

約数の個数: 128

約数和(自身を含む): 62208000

約数和(自身を除く): 41289432

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 17, 22, 24, 33, 34, 44, 51, 59, 66, 68, 79, 88, 102, 118, 132, 136, 158, 177, 187, 204, 236, 237, 264, 316, 354, 374, 408, 472, 474, 561, 632, 649, 708, 748, 869, 948, 1003, 1122, 1298, 1343, 1416, 1496, 1738, 1896, 1947, 2006, 2244, 2596, 2607, 2686, 3009, 3476, 3894, 4012, 4029, 4488, 4661, 5192, 5214, 5372, 6018, 6952, 7788, 8024, 8058, 9322, 10428, 10744, 11033, 12036, 13983, 14773, 15576, 16116, 18644, 20856, 22066, 24072, 27966, 29546, 32232, 33099, 37288, 44132, 44319, 51271, 55932, 59092, 66198, 79237, 88264, 88638, 102542, 111864, 118184, 132396, 153813, 158474, 177276, 205084, 237711, 264792, 307626, 316948, 354552, 410168, 475422, 615252, 633896, 871607, 950844, 1230504, 1743214, 1901688, 2614821, 3486428, 5229642, 6972856, 10459284, 20918568]

約数ペア:

[(1, 20918568), (2, 10459284), (3, 6972856), (4, 5229642), (6, 3486428), (8, 2614821), (11, 1901688), (12, 1743214), (17, 1230504), (22, 950844), (24, 871607), (33, 633896), (34, 615252), (44, 475422), (51, 410168), (59, 354552), (66, 316948), (68, 307626), (79, 264792), (88, 237711), (102, 205084), (118, 177276), (132, 158474), (136, 153813), (158, 132396), (177, 118184), (187, 111864), (204, 102542), (236, 88638), (237, 88264), (264, 79237), (316, 66198), (354, 59092), (374, 55932), (408, 51271), (472, 44319), (474, 44132), (561, 37288), (632, 33099), (649, 32232), (708, 29546), (748, 27966), (869, 24072), (948, 22066), (1003, 20856), (1122, 18644), (1298, 16116), (1343, 15576), (1416, 14773), (1496, 13983), (1738, 12036), (1896, 11033), (1947, 10744), (2006, 10428), (2244, 9322), (2596, 8058), (2607, 8024), (2686, 7788), (3009, 6952), (3476, 6018), (3894, 5372), (4012, 5214), (4029, 5192), (4488, 4661)]