207157640

素因数分解:

$2^3\times 5^1\times {\mathrm{5178941}}^1$

素因数の和:5178952

約数の個数: 16

約数和(自身を含む): 466104780

約数和(自身を除く): 258947140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5178941, 10357882, 20715764, 25894705, 41431528, 51789410, 103578820, 207157640]

約数ペア:

[(1, 207157640), (2, 103578820), (4, 51789410), (5, 41431528), (8, 25894705), (10, 20715764), (20, 10357882), (40, 5178941)]