78771890

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{212897}}^1$

素因数の和:212941

約数の個数: 16

約数和(自身を含む): 145622232

約数和(自身を除く): 66850342

約数列:

[1, 2, 5, 10, 37, 74, 185, 370, 212897, 425794, 1064485, 2128970, 7877189, 15754378, 39385945, 78771890]

約数ペア:

[(1, 78771890), (2, 39385945), (5, 15754378), (10, 7877189), (37, 2128970), (74, 1064485), (185, 425794), (370, 212897)]