2020138820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{22441}}^1$

素因数の和:23100

約数の個数: 48

約数和(自身を含む): 4856089728

約数和(自身を除く): 2835950908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 643, 1286, 2572, 3215, 4501, 6430, 9002, 12860, 18004, 22441, 22505, 44882, 45010, 89764, 90020, 112205, 157087, 224410, 314174, 448820, 628348, 785435, 1570870, 3141740, 14429563, 28859126, 57718252, 72147815, 101006941, 144295630, 202013882, 288591260, 404027764, 505034705, 1010069410, 2020138820]

約数ペア:

[(1, 2020138820), (2, 1010069410), (4, 505034705), (5, 404027764), (7, 288591260), (10, 202013882), (14, 144295630), (20, 101006941), (28, 72147815), (35, 57718252), (70, 28859126), (140, 14429563), (643, 3141740), (1286, 1570870), (2572, 785435), (3215, 628348), (4501, 448820), (6430, 314174), (9002, 224410), (12860, 157087), (18004, 112205), (22441, 90020), (22505, 89764), (44882, 45010)]