1621337140

素因数分解:

$2^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{263}}^1\times {\mathrm{1279}}^1$

素因数の和:1792

約数の個数: 48

約数和(自身を含む): 3434618880

約数和(自身を除く): 1813281740

約数列:

[1, 2, 4, 5, 10, 20, 241, 263, 482, 526, 964, 1052, 1205, 1279, 1315, 2410, 2558, 2630, 4820, 5116, 5260, 6395, 12790, 25580, 63383, 126766, 253532, 308239, 316915, 336377, 616478, 633830, 672754, 1232956, 1267660, 1345508, 1541195, 1681885, 3082390, 3363770, 6164780, 6727540, 81066857, 162133714, 324267428, 405334285, 810668570, 1621337140]

約数ペア:

[(1, 1621337140), (2, 810668570), (4, 405334285), (5, 324267428), (10, 162133714), (20, 81066857), (241, 6727540), (263, 6164780), (482, 3363770), (526, 3082390), (964, 1681885), (1052, 1541195), (1205, 1345508), (1279, 1267660), (1315, 1232956), (2410, 672754), (2558, 633830), (2630, 616478), (4820, 336377), (5116, 316915), (5260, 308239), (6395, 253532), (12790, 126766), (25580, 63383)]