20212687088

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1571}}^1\times {\mathrm{1783}}^1$

素因数の和:3414

約数の個数: 80

約数和(自身を含む): 43816695552

約数和(自身を除く): 23604008464

約数列:

[1, 2, 4, 8, 11, 16, 22, 41, 44, 82, 88, 164, 176, 328, 451, 656, 902, 1571, 1783, 1804, 3142, 3566, 3608, 6284, 7132, 7216, 12568, 14264, 17281, 19613, 25136, 28528, 34562, 39226, 64411, 69124, 73103, 78452, 128822, 138248, 146206, 156904, 257644, 276496, 292412, 313808, 515288, 584824, 708521, 804133, 1030576, 1169648, 1417042, 1608266, 2801093, 2834084, 3216532, 5602186, 5668168, 6433064, 11204372, 11336336, 12866128, 22408744, 30812023, 44817488, 61624046, 114844813, 123248092, 229689626, 246496184, 459379252, 492992368, 918758504, 1263292943, 1837517008, 2526585886, 5053171772, 10106343544, 20212687088]

約数ペア:

[(1, 20212687088), (2, 10106343544), (4, 5053171772), (8, 2526585886), (11, 1837517008), (16, 1263292943), (22, 918758504), (41, 492992368), (44, 459379252), (82, 246496184), (88, 229689626), (164, 123248092), (176, 114844813), (328, 61624046), (451, 44817488), (656, 30812023), (902, 22408744), (1571, 12866128), (1783, 11336336), (1804, 11204372), (3142, 6433064), (3566, 5668168), (3608, 5602186), (6284, 3216532), (7132, 2834084), (7216, 2801093), (12568, 1608266), (14264, 1417042), (17281, 1169648), (19613, 1030576), (25136, 804133), (28528, 708521), (34562, 584824), (39226, 515288), (64411, 313808), (69124, 292412), (73103, 276496), (78452, 257644), (128822, 156904), (138248, 146206)]