257930757

素因数分解:

$3^3\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:404

約数の個数: 96

約数和(自身を含む): 484454400

約数和(自身を除く): 226523643

約数列:

[1, 3, 7, 9, 19, 21, 27, 31, 49, 57, 63, 93, 133, 147, 171, 189, 217, 279, 331, 399, 441, 513, 589, 651, 837, 931, 993, 1197, 1323, 1519, 1767, 1953, 2317, 2793, 2979, 3591, 4123, 4557, 5301, 5859, 6289, 6951, 8379, 8937, 10261, 12369, 13671, 15903, 16219, 18867, 20853, 25137, 28861, 30783, 37107, 41013, 44023, 48657, 56601, 62559, 71827, 86583, 92349, 111321, 132069, 145971, 169803, 194959, 215481, 259749, 277047, 308161, 396207, 437913, 502789, 584877, 646443, 779247, 924483, 1188621, 1364713, 1508367, 1754631, 1939329, 2773449, 4094139, 4525101, 5263893, 8320347, 9552991, 12282417, 13575303, 28658973, 36847251, 85976919, 257930757]

約数ペア:

[(1, 257930757), (3, 85976919), (7, 36847251), (9, 28658973), (19, 13575303), (21, 12282417), (27, 9552991), (31, 8320347), (49, 5263893), (57, 4525101), (63, 4094139), (93, 2773449), (133, 1939329), (147, 1754631), (171, 1508367), (189, 1364713), (217, 1188621), (279, 924483), (331, 779247), (399, 646443), (441, 584877), (513, 502789), (589, 437913), (651, 396207), (837, 308161), (931, 277047), (993, 259749), (1197, 215481), (1323, 194959), (1519, 169803), (1767, 145971), (1953, 132069), (2317, 111321), (2793, 92349), (2979, 86583), (3591, 71827), (4123, 62559), (4557, 56601), (5301, 48657), (5859, 44023), (6289, 41013), (6951, 37107), (8379, 30783), (8937, 28861), (10261, 25137), (12369, 20853), (13671, 18867), (15903, 16219)]