868721840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1551289}}^1$

素因数の和:1551309

約数の個数: 40

約数和(自身を含む): 2308319520

約数和(自身を除く): 1439597680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 1551289, 3102578, 6205156, 7756445, 10859023, 12410312, 15512890, 21718046, 24820624, 31025780, 43436092, 54295115, 62051560, 86872184, 108590230, 124103120, 173744368, 217180460, 434360920, 868721840]

約数ペア:

[(1, 868721840), (2, 434360920), (4, 217180460), (5, 173744368), (7, 124103120), (8, 108590230), (10, 86872184), (14, 62051560), (16, 54295115), (20, 43436092), (28, 31025780), (35, 24820624), (40, 21718046), (56, 15512890), (70, 12410312), (80, 10859023), (112, 7756445), (140, 6205156), (280, 3102578), (560, 1551289)]