640996992

素因数分解:

$2^7\times 3^2\times {\mathrm{431}}^1\times {\mathrm{1291}}^1$

素因数の和:1742

約数の個数: 96

約数和(自身を含む): 1850247360

約数和(自身を除く): 1209250368

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 72, 96, 128, 144, 192, 288, 384, 431, 576, 862, 1152, 1291, 1293, 1724, 2582, 2586, 3448, 3873, 3879, 5164, 5172, 6896, 7746, 7758, 10328, 10344, 11619, 13792, 15492, 15516, 20656, 20688, 23238, 27584, 30984, 31032, 41312, 41376, 46476, 55168, 61968, 62064, 82624, 82752, 92952, 123936, 124128, 165248, 165504, 185904, 247872, 248256, 371808, 495744, 496512, 556421, 743616, 1112842, 1487232, 1669263, 2225684, 3338526, 4451368, 5007789, 6677052, 8902736, 10015578, 13354104, 17805472, 20031156, 26708208, 35610944, 40062312, 53416416, 71221888, 80124624, 106832832, 160249248, 213665664, 320498496, 640996992]

約数ペア:

[(1, 640996992), (2, 320498496), (3, 213665664), (4, 160249248), (6, 106832832), (8, 80124624), (9, 71221888), (12, 53416416), (16, 40062312), (18, 35610944), (24, 26708208), (32, 20031156), (36, 17805472), (48, 13354104), (64, 10015578), (72, 8902736), (96, 6677052), (128, 5007789), (144, 4451368), (192, 3338526), (288, 2225684), (384, 1669263), (431, 1487232), (576, 1112842), (862, 743616), (1152, 556421), (1291, 496512), (1293, 495744), (1724, 371808), (2582, 248256), (2586, 247872), (3448, 185904), (3873, 165504), (3879, 165248), (5164, 124128), (5172, 123936), (6896, 92952), (7746, 82752), (7758, 82624), (10328, 62064), (10344, 61968), (11619, 55168), (13792, 46476), (15492, 41376), (15516, 41312), (20656, 31032), (20688, 30984), (23238, 27584)]