20481552

素因数分解:

$2^4\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{521}}^1$

素因数の和:558

約数の個数: 160

約数和(自身を含む): 72495360

約数和(自身を除く): 52013808

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 27, 28, 36, 39, 42, 48, 52, 54, 56, 63, 72, 78, 84, 91, 104, 108, 112, 117, 126, 144, 156, 168, 182, 189, 208, 216, 234, 252, 273, 312, 336, 351, 364, 378, 432, 468, 504, 521, 546, 624, 702, 728, 756, 819, 936, 1008, 1042, 1092, 1404, 1456, 1512, 1563, 1638, 1872, 2084, 2184, 2457, 2808, 3024, 3126, 3276, 3647, 4168, 4368, 4689, 4914, 5616, 6252, 6552, 6773, 7294, 8336, 9378, 9828, 10941, 12504, 13104, 13546, 14067, 14588, 18756, 19656, 20319, 21882, 25008, 27092, 28134, 29176, 32823, 37512, 39312, 40638, 43764, 47411, 54184, 56268, 58352, 60957, 65646, 75024, 81276, 87528, 94822, 98469, 108368, 112536, 121914, 131292, 142233, 162552, 175056, 182871, 189644, 196938, 225072, 243828, 262584, 284466, 325104, 365742, 379288, 393876, 426699, 487656, 525168, 568932, 731484, 758576, 787752, 853398, 975312, 1137864, 1280097, 1462968, 1575504, 1706796, 2275728, 2560194, 2925936, 3413592, 5120388, 6827184, 10240776, 20481552]

約数ペア:

[(1, 20481552), (2, 10240776), (3, 6827184), (4, 5120388), (6, 3413592), (7, 2925936), (8, 2560194), (9, 2275728), (12, 1706796), (13, 1575504), (14, 1462968), (16, 1280097), (18, 1137864), (21, 975312), (24, 853398), (26, 787752), (27, 758576), (28, 731484), (36, 568932), (39, 525168), (42, 487656), (48, 426699), (52, 393876), (54, 379288), (56, 365742), (63, 325104), (72, 284466), (78, 262584), (84, 243828), (91, 225072), (104, 196938), (108, 189644), (112, 182871), (117, 175056), (126, 162552), (144, 142233), (156, 131292), (168, 121914), (182, 112536), (189, 108368), (208, 98469), (216, 94822), (234, 87528), (252, 81276), (273, 75024), (312, 65646), (336, 60957), (351, 58352), (364, 56268), (378, 54184), (432, 47411), (468, 43764), (504, 40638), (521, 39312), (546, 37512), (624, 32823), (702, 29176), (728, 28134), (756, 27092), (819, 25008), (936, 21882), (1008, 20319), (1042, 19656), (1092, 18756), (1404, 14588), (1456, 14067), (1512, 13546), (1563, 13104), (1638, 12504), (1872, 10941), (2084, 9828), (2184, 9378), (2457, 8336), (2808, 7294), (3024, 6773), (3126, 6552), (3276, 6252), (3647, 5616), (4168, 4914), (4368, 4689)]