20418256368

素因数分解:

$2^4\times 3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{438989}}^1$

素因数の和:439039

約数の個数: 120

約数和(自身を含む): 63688669200

約数和(自身を除く): 43270412832

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 19, 24, 34, 36, 38, 48, 51, 57, 68, 72, 76, 102, 114, 136, 144, 152, 153, 171, 204, 228, 272, 304, 306, 323, 342, 408, 456, 612, 646, 684, 816, 912, 969, 1224, 1292, 1368, 1938, 2448, 2584, 2736, 2907, 3876, 5168, 5814, 7752, 11628, 15504, 23256, 46512, 438989, 877978, 1316967, 1755956, 2633934, 3511912, 3950901, 5267868, 7023824, 7462813, 7901802, 8340791, 10535736, 14925626, 15803604, 16681582, 21071472, 22388439, 25022373, 29851252, 31607208, 33363164, 44776878, 50044746, 59702504, 63214416, 66726328, 67165317, 75067119, 89553756, 100089492, 119405008, 133452656, 134330634, 141793447, 150134238, 179107512, 200178984, 268661268, 283586894, 300268476, 358215024, 400357968, 425380341, 537322536, 567173788, 600536952, 850760682, 1074645072, 1134347576, 1201073904, 1276141023, 1701521364, 2268695152, 2552282046, 3403042728, 5104564092, 6806085456, 10209128184, 20418256368]

約数ペア:

[(1, 20418256368), (2, 10209128184), (3, 6806085456), (4, 5104564092), (6, 3403042728), (8, 2552282046), (9, 2268695152), (12, 1701521364), (16, 1276141023), (17, 1201073904), (18, 1134347576), (19, 1074645072), (24, 850760682), (34, 600536952), (36, 567173788), (38, 537322536), (48, 425380341), (51, 400357968), (57, 358215024), (68, 300268476), (72, 283586894), (76, 268661268), (102, 200178984), (114, 179107512), (136, 150134238), (144, 141793447), (152, 134330634), (153, 133452656), (171, 119405008), (204, 100089492), (228, 89553756), (272, 75067119), (304, 67165317), (306, 66726328), (323, 63214416), (342, 59702504), (408, 50044746), (456, 44776878), (612, 33363164), (646, 31607208), (684, 29851252), (816, 25022373), (912, 22388439), (969, 21071472), (1224, 16681582), (1292, 15803604), (1368, 14925626), (1938, 10535736), (2448, 8340791), (2584, 7901802), (2736, 7462813), (2907, 7023824), (3876, 5267868), (5168, 3950901), (5814, 3511912), (7752, 2633934), (11628, 1755956), (15504, 1316967), (23256, 877978), (46512, 438989)]