178974976

素因数分解:

$2^8\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:307

約数の個数: 72

約数和(自身を含む): 370425944

約数和(自身を除く): 191450968

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 73, 122, 128, 146, 157, 244, 256, 292, 314, 488, 584, 628, 976, 1168, 1256, 1952, 2336, 2512, 3904, 4453, 4672, 5024, 7808, 8906, 9344, 9577, 10048, 11461, 15616, 17812, 18688, 19154, 20096, 22922, 35624, 38308, 40192, 45844, 71248, 76616, 91688, 142496, 153232, 183376, 284992, 306464, 366752, 569984, 612928, 699121, 733504, 1139968, 1225856, 1398242, 1467008, 2451712, 2796484, 2934016, 5592968, 11185936, 22371872, 44743744, 89487488, 178974976]

約数ペア:

[(1, 178974976), (2, 89487488), (4, 44743744), (8, 22371872), (16, 11185936), (32, 5592968), (61, 2934016), (64, 2796484), (73, 2451712), (122, 1467008), (128, 1398242), (146, 1225856), (157, 1139968), (244, 733504), (256, 699121), (292, 612928), (314, 569984), (488, 366752), (584, 306464), (628, 284992), (976, 183376), (1168, 153232), (1256, 142496), (1952, 91688), (2336, 76616), (2512, 71248), (3904, 45844), (4453, 40192), (4672, 38308), (5024, 35624), (7808, 22922), (8906, 20096), (9344, 19154), (9577, 18688), (10048, 17812), (11461, 15616)]