207825520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{5227}}^1$

素因数の和:5318

約数の個数: 80

約数和(自身を含む): 560107008

約数和(自身を除く): 352281488

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 71, 80, 112, 140, 142, 280, 284, 355, 497, 560, 568, 710, 994, 1136, 1420, 1988, 2485, 2840, 3976, 4970, 5227, 5680, 7952, 9940, 10454, 19880, 20908, 26135, 36589, 39760, 41816, 52270, 73178, 83632, 104540, 146356, 182945, 209080, 292712, 365890, 371117, 418160, 585424, 731780, 742234, 1463560, 1484468, 1855585, 2597819, 2927120, 2968936, 3711170, 5195638, 5937872, 7422340, 10391276, 12989095, 14844680, 20782552, 25978190, 29689360, 41565104, 51956380, 103912760, 207825520]

約数ペア:

[(1, 207825520), (2, 103912760), (4, 51956380), (5, 41565104), (7, 29689360), (8, 25978190), (10, 20782552), (14, 14844680), (16, 12989095), (20, 10391276), (28, 7422340), (35, 5937872), (40, 5195638), (56, 3711170), (70, 2968936), (71, 2927120), (80, 2597819), (112, 1855585), (140, 1484468), (142, 1463560), (280, 742234), (284, 731780), (355, 585424), (497, 418160), (560, 371117), (568, 365890), (710, 292712), (994, 209080), (1136, 182945), (1420, 146356), (1988, 104540), (2485, 83632), (2840, 73178), (3976, 52270), (4970, 41816), (5227, 39760), (5680, 36589), (7952, 26135), (9940, 20908), (10454, 19880)]