4147940

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1321}}^1$

素因数の和:1487

約数の個数: 24

約数和(自身を含む): 8772792

約数和(自身を除く): 4624852

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1321, 1570, 2642, 3140, 5284, 6605, 13210, 26420, 207397, 414794, 829588, 1036985, 2073970, 4147940]

約数ペア:

[(1, 4147940), (2, 2073970), (4, 1036985), (5, 829588), (10, 414794), (20, 207397), (157, 26420), (314, 13210), (628, 6605), (785, 5284), (1321, 3140), (1570, 2642)]