257427968

素因数分解:

$2^9\times 7^2\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:394

約数の個数: 120

約数和(自身を含む): 619496064

約数和(自身を除く): 362068096

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 49, 56, 62, 64, 98, 112, 124, 128, 196, 217, 224, 248, 256, 331, 392, 434, 448, 496, 512, 662, 784, 868, 896, 992, 1324, 1519, 1568, 1736, 1792, 1984, 2317, 2648, 3038, 3136, 3472, 3584, 3968, 4634, 5296, 6076, 6272, 6944, 7936, 9268, 10261, 10592, 12152, 12544, 13888, 15872, 16219, 18536, 20522, 21184, 24304, 25088, 27776, 32438, 37072, 41044, 42368, 48608, 55552, 64876, 71827, 74144, 82088, 84736, 97216, 111104, 129752, 143654, 148288, 164176, 169472, 194432, 259504, 287308, 296576, 328352, 388864, 502789, 519008, 574616, 593152, 656704, 777728, 1005578, 1038016, 1149232, 1186304, 1313408, 2011156, 2076032, 2298464, 2626816, 4022312, 4152064, 4596928, 5253632, 8044624, 8304128, 9193856, 16089248, 18387712, 32178496, 36775424, 64356992, 128713984, 257427968]

約数ペア:

[(1, 257427968), (2, 128713984), (4, 64356992), (7, 36775424), (8, 32178496), (14, 18387712), (16, 16089248), (28, 9193856), (31, 8304128), (32, 8044624), (49, 5253632), (56, 4596928), (62, 4152064), (64, 4022312), (98, 2626816), (112, 2298464), (124, 2076032), (128, 2011156), (196, 1313408), (217, 1186304), (224, 1149232), (248, 1038016), (256, 1005578), (331, 777728), (392, 656704), (434, 593152), (448, 574616), (496, 519008), (512, 502789), (662, 388864), (784, 328352), (868, 296576), (896, 287308), (992, 259504), (1324, 194432), (1519, 169472), (1568, 164176), (1736, 148288), (1792, 143654), (1984, 129752), (2317, 111104), (2648, 97216), (3038, 84736), (3136, 82088), (3472, 74144), (3584, 71827), (3968, 64876), (4634, 55552), (5296, 48608), (6076, 42368), (6272, 41044), (6944, 37072), (7936, 32438), (9268, 27776), (10261, 25088), (10592, 24304), (12152, 21184), (12544, 20522), (13888, 18536), (15872, 16219)]