201212920

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{51859}}^1$

素因数の和:51967

約数の個数: 32

約数和(自身を含む): 457405200

約数和(自身を除く): 256192280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 51859, 103718, 207436, 259295, 414872, 518590, 1037180, 2074360, 5030323, 10060646, 20121292, 25151615, 40242584, 50303230, 100606460, 201212920]

約数ペア:

[(1, 201212920), (2, 100606460), (4, 50303230), (5, 40242584), (8, 25151615), (10, 20121292), (20, 10060646), (40, 5030323), (97, 2074360), (194, 1037180), (388, 518590), (485, 414872), (776, 259295), (970, 207436), (1940, 103718), (3880, 51859)]