661531968

素因数分解:

$2^6\times 3^3\times {\mathrm{19}}^1\times {\mathrm{20149}}^1$

素因数の和:20189

約数の個数: 112

約数和(自身を含む): 2047240000

約数和(自身を除く): 1385708032

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 27, 32, 36, 38, 48, 54, 57, 64, 72, 76, 96, 108, 114, 144, 152, 171, 192, 216, 228, 288, 304, 342, 432, 456, 513, 576, 608, 684, 864, 912, 1026, 1216, 1368, 1728, 1824, 2052, 2736, 3648, 4104, 5472, 8208, 10944, 16416, 20149, 32832, 40298, 60447, 80596, 120894, 161192, 181341, 241788, 322384, 362682, 382831, 483576, 544023, 644768, 725364, 765662, 967152, 1088046, 1148493, 1289536, 1450728, 1531324, 1934304, 2176092, 2296986, 2901456, 3062648, 3445479, 3868608, 4352184, 4593972, 5802912, 6125296, 6890958, 8704368, 9187944, 10336437, 11605824, 12250592, 13781916, 17408736, 18375888, 20672874, 24501184, 27563832, 34817472, 36751776, 41345748, 55127664, 73503552, 82691496, 110255328, 165382992, 220510656, 330765984, 661531968]

約数ペア:

[(1, 661531968), (2, 330765984), (3, 220510656), (4, 165382992), (6, 110255328), (8, 82691496), (9, 73503552), (12, 55127664), (16, 41345748), (18, 36751776), (19, 34817472), (24, 27563832), (27, 24501184), (32, 20672874), (36, 18375888), (38, 17408736), (48, 13781916), (54, 12250592), (57, 11605824), (64, 10336437), (72, 9187944), (76, 8704368), (96, 6890958), (108, 6125296), (114, 5802912), (144, 4593972), (152, 4352184), (171, 3868608), (192, 3445479), (216, 3062648), (228, 2901456), (288, 2296986), (304, 2176092), (342, 1934304), (432, 1531324), (456, 1450728), (513, 1289536), (576, 1148493), (608, 1088046), (684, 967152), (864, 765662), (912, 725364), (1026, 644768), (1216, 544023), (1368, 483576), (1728, 382831), (1824, 362682), (2052, 322384), (2736, 241788), (3648, 181341), (4104, 161192), (5472, 120894), (8208, 80596), (10944, 60447), (16416, 40298), (20149, 32832)]