128342272

素因数分解:

$2^8\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:279

約数の個数: 72

約数和(自身を含む): 267109920

約数和(自身を除く): 138767648

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 89, 128, 131, 172, 178, 256, 262, 344, 356, 524, 688, 712, 1048, 1376, 1424, 2096, 2752, 2848, 3827, 4192, 5504, 5633, 5696, 7654, 8384, 11008, 11266, 11392, 11659, 15308, 16768, 22532, 22784, 23318, 30616, 33536, 45064, 46636, 61232, 90128, 93272, 122464, 180256, 186544, 244928, 360512, 373088, 489856, 501337, 721024, 746176, 979712, 1002674, 1442048, 1492352, 2005348, 2984704, 4010696, 8021392, 16042784, 32085568, 64171136, 128342272]

約数ペア:

[(1, 128342272), (2, 64171136), (4, 32085568), (8, 16042784), (16, 8021392), (32, 4010696), (43, 2984704), (64, 2005348), (86, 1492352), (89, 1442048), (128, 1002674), (131, 979712), (172, 746176), (178, 721024), (256, 501337), (262, 489856), (344, 373088), (356, 360512), (524, 244928), (688, 186544), (712, 180256), (1048, 122464), (1376, 93272), (1424, 90128), (2096, 61232), (2752, 46636), (2848, 45064), (3827, 33536), (4192, 30616), (5504, 23318), (5633, 22784), (5696, 22532), (7654, 16768), (8384, 15308), (11008, 11659), (11266, 11392)]