1280147883

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:277

約数の個数: 96

約数和(自身を含む): 2157281280

約数和(自身を除く): 877133397

約数列:

[1, 3, 7, 21, 31, 43, 47, 49, 93, 129, 139, 141, 147, 217, 301, 329, 417, 651, 903, 973, 987, 1333, 1457, 1519, 2021, 2107, 2303, 2919, 3999, 4309, 4371, 4557, 5977, 6063, 6321, 6533, 6811, 6909, 9331, 10199, 12927, 14147, 17931, 19599, 20433, 27993, 30163, 30597, 41839, 42441, 45731, 62651, 65317, 71393, 90489, 99029, 125517, 137193, 185287, 187953, 195951, 202523, 211141, 214179, 280919, 292873, 297087, 320117, 438557, 555861, 607569, 633423, 842757, 878619, 960351, 1297009, 1315671, 1417661, 1966433, 3069899, 3891027, 4252983, 5899299, 8708489, 9079063, 9209697, 9923627, 13765031, 26125467, 27237189, 29770881, 41295093, 60959423, 182878269, 426715961, 1280147883]

約数ペア:

[(1, 1280147883), (3, 426715961), (7, 182878269), (21, 60959423), (31, 41295093), (43, 29770881), (47, 27237189), (49, 26125467), (93, 13765031), (129, 9923627), (139, 9209697), (141, 9079063), (147, 8708489), (217, 5899299), (301, 4252983), (329, 3891027), (417, 3069899), (651, 1966433), (903, 1417661), (973, 1315671), (987, 1297009), (1333, 960351), (1457, 878619), (1519, 842757), (2021, 633423), (2107, 607569), (2303, 555861), (2919, 438557), (3999, 320117), (4309, 297087), (4371, 292873), (4557, 280919), (5977, 214179), (6063, 211141), (6321, 202523), (6533, 195951), (6811, 187953), (6909, 185287), (9331, 137193), (10199, 125517), (12927, 99029), (14147, 90489), (17931, 71393), (19599, 65317), (20433, 62651), (27993, 45731), (30163, 42441), (30597, 41839)]