1640468820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{337}}^1\times {\mathrm{81131}}^1$

素因数の和:81480

約数の個数: 48

約数和(自身を含む): 4606999488

約数和(自身を除く): 2966530668

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 337, 674, 1011, 1348, 1685, 2022, 3370, 4044, 5055, 6740, 10110, 20220, 81131, 162262, 243393, 324524, 405655, 486786, 811310, 973572, 1216965, 1622620, 2433930, 4867860, 27341147, 54682294, 82023441, 109364588, 136705735, 164046882, 273411470, 328093764, 410117205, 546822940, 820234410, 1640468820]

約数ペア:

[(1, 1640468820), (2, 820234410), (3, 546822940), (4, 410117205), (5, 328093764), (6, 273411470), (10, 164046882), (12, 136705735), (15, 109364588), (20, 82023441), (30, 54682294), (60, 27341147), (337, 4867860), (674, 2433930), (1011, 1622620), (1348, 1216965), (1685, 973572), (2022, 811310), (3370, 486786), (4044, 405655), (5055, 324524), (6740, 243393), (10110, 162262), (20220, 81131)]