81131776

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{613}}^1$

素因数の和:687

約数の個数: 72

約数和(自身を含む): 180722304

約数和(自身を除く): 99590528

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 47, 64, 88, 94, 128, 176, 188, 256, 352, 376, 517, 613, 704, 752, 1034, 1226, 1408, 1504, 2068, 2452, 2816, 3008, 4136, 4904, 6016, 6743, 8272, 9808, 12032, 13486, 16544, 19616, 26972, 28811, 33088, 39232, 53944, 57622, 66176, 78464, 107888, 115244, 132352, 156928, 215776, 230488, 316921, 431552, 460976, 633842, 863104, 921952, 1267684, 1726208, 1843904, 2535368, 3687808, 5070736, 7375616, 10141472, 20282944, 40565888, 81131776]

約数ペア:

[(1, 81131776), (2, 40565888), (4, 20282944), (8, 10141472), (11, 7375616), (16, 5070736), (22, 3687808), (32, 2535368), (44, 1843904), (47, 1726208), (64, 1267684), (88, 921952), (94, 863104), (128, 633842), (176, 460976), (188, 431552), (256, 316921), (352, 230488), (376, 215776), (517, 156928), (613, 132352), (704, 115244), (752, 107888), (1034, 78464), (1226, 66176), (1408, 57622), (1504, 53944), (2068, 39232), (2452, 33088), (2816, 28811), (3008, 26972), (4136, 19616), (4904, 16544), (6016, 13486), (6743, 12032), (8272, 9808)]