321174272

素因数分解:

$2^8\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:365

約数の個数: 72

約数和(自身を含む): 660759792

約数和(自身を除く): 339585520

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 128, 131, 157, 244, 256, 262, 314, 488, 524, 628, 976, 1048, 1256, 1952, 2096, 2512, 3904, 4192, 5024, 7808, 7991, 8384, 9577, 10048, 15616, 15982, 16768, 19154, 20096, 20567, 31964, 33536, 38308, 40192, 41134, 63928, 76616, 82268, 127856, 153232, 164536, 255712, 306464, 329072, 511424, 612928, 658144, 1022848, 1225856, 1254587, 1316288, 2045696, 2451712, 2509174, 2632576, 5018348, 5265152, 10036696, 20073392, 40146784, 80293568, 160587136, 321174272]

約数ペア:

[(1, 321174272), (2, 160587136), (4, 80293568), (8, 40146784), (16, 20073392), (32, 10036696), (61, 5265152), (64, 5018348), (122, 2632576), (128, 2509174), (131, 2451712), (157, 2045696), (244, 1316288), (256, 1254587), (262, 1225856), (314, 1022848), (488, 658144), (524, 612928), (628, 511424), (976, 329072), (1048, 306464), (1256, 255712), (1952, 164536), (2096, 153232), (2512, 127856), (3904, 82268), (4192, 76616), (5024, 63928), (7808, 41134), (7991, 40192), (8384, 38308), (9577, 33536), (10048, 31964), (15616, 20567), (15982, 20096), (16768, 19154)]