128729920

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{36571}}^1$

素因数の和:36599

約数の個数: 56

約数和(自身を含む): 334414368

約数和(自身を除く): 205684448

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 320, 352, 440, 704, 880, 1760, 3520, 36571, 73142, 146284, 182855, 292568, 365710, 402281, 585136, 731420, 804562, 1170272, 1462840, 1609124, 2011405, 2340544, 2925680, 3218248, 4022810, 5851360, 6436496, 8045620, 11702720, 12872992, 16091240, 25745984, 32182480, 64364960, 128729920]

約数ペア:

[(1, 128729920), (2, 64364960), (4, 32182480), (5, 25745984), (8, 16091240), (10, 12872992), (11, 11702720), (16, 8045620), (20, 6436496), (22, 5851360), (32, 4022810), (40, 3218248), (44, 2925680), (55, 2340544), (64, 2011405), (80, 1609124), (88, 1462840), (110, 1170272), (160, 804562), (176, 731420), (220, 585136), (320, 402281), (352, 365710), (440, 292568), (704, 182855), (880, 146284), (1760, 73142), (3520, 36571)]