81857244

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1$

素因数の和:488

約数の個数: 144

約数和(自身を含む): 248209920

約数和(自身を除く): 166352676

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 19, 21, 28, 34, 38, 42, 49, 51, 57, 68, 76, 84, 98, 102, 114, 119, 133, 147, 196, 204, 228, 238, 266, 294, 323, 357, 399, 431, 476, 532, 588, 646, 714, 798, 833, 862, 931, 969, 1292, 1293, 1428, 1596, 1666, 1724, 1862, 1938, 2261, 2499, 2586, 2793, 3017, 3332, 3724, 3876, 4522, 4998, 5172, 5586, 6034, 6783, 7327, 8189, 9044, 9051, 9996, 11172, 12068, 13566, 14654, 15827, 16378, 18102, 21119, 21981, 24567, 27132, 29308, 31654, 32756, 36204, 42238, 43962, 47481, 49134, 51289, 57323, 63308, 63357, 84476, 87924, 94962, 98268, 102578, 114646, 126714, 139213, 153867, 171969, 189924, 205156, 229292, 253428, 278426, 307734, 343938, 359023, 401261, 417639, 556852, 615468, 687876, 718046, 802522, 835278, 974491, 1077069, 1203783, 1436092, 1605044, 1670556, 1948982, 2154138, 2407566, 2923473, 3897964, 4308276, 4815132, 5846946, 6821437, 11693892, 13642874, 20464311, 27285748, 40928622, 81857244]

約数ペア:

[(1, 81857244), (2, 40928622), (3, 27285748), (4, 20464311), (6, 13642874), (7, 11693892), (12, 6821437), (14, 5846946), (17, 4815132), (19, 4308276), (21, 3897964), (28, 2923473), (34, 2407566), (38, 2154138), (42, 1948982), (49, 1670556), (51, 1605044), (57, 1436092), (68, 1203783), (76, 1077069), (84, 974491), (98, 835278), (102, 802522), (114, 718046), (119, 687876), (133, 615468), (147, 556852), (196, 417639), (204, 401261), (228, 359023), (238, 343938), (266, 307734), (294, 278426), (323, 253428), (357, 229292), (399, 205156), (431, 189924), (476, 171969), (532, 153867), (588, 139213), (646, 126714), (714, 114646), (798, 102578), (833, 98268), (862, 94962), (931, 87924), (969, 84476), (1292, 63357), (1293, 63308), (1428, 57323), (1596, 51289), (1666, 49134), (1724, 47481), (1862, 43962), (1938, 42238), (2261, 36204), (2499, 32756), (2586, 31654), (2793, 29308), (3017, 27132), (3332, 24567), (3724, 21981), (3876, 21119), (4522, 18102), (4998, 16378), (5172, 15827), (5586, 14654), (6034, 13566), (6783, 12068), (7327, 11172), (8189, 9996), (9044, 9051)]