128720384

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{233}}^1$

素因数の和:347

約数の個数: 80

約数和(自身を含む): 281513232

約数和(自身を除く): 152792848

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 83, 104, 128, 166, 208, 233, 256, 332, 416, 466, 512, 664, 832, 932, 1079, 1328, 1664, 1864, 2158, 2656, 3029, 3328, 3728, 4316, 5312, 6058, 6656, 7456, 8632, 10624, 12116, 14912, 17264, 19339, 21248, 24232, 29824, 34528, 38678, 42496, 48464, 59648, 69056, 77356, 96928, 119296, 138112, 154712, 193856, 251407, 276224, 309424, 387712, 502814, 552448, 618848, 775424, 1005628, 1237696, 1550848, 2011256, 2475392, 4022512, 4950784, 8045024, 9901568, 16090048, 32180096, 64360192, 128720384]

約数ペア:

[(1, 128720384), (2, 64360192), (4, 32180096), (8, 16090048), (13, 9901568), (16, 8045024), (26, 4950784), (32, 4022512), (52, 2475392), (64, 2011256), (83, 1550848), (104, 1237696), (128, 1005628), (166, 775424), (208, 618848), (233, 552448), (256, 502814), (332, 387712), (416, 309424), (466, 276224), (512, 251407), (664, 193856), (832, 154712), (932, 138112), (1079, 119296), (1328, 96928), (1664, 77356), (1864, 69056), (2158, 59648), (2656, 48464), (3029, 42496), (3328, 38678), (3728, 34528), (4316, 29824), (5312, 24232), (6058, 21248), (6656, 19339), (7456, 17264), (8632, 14912), (10624, 12116)]