77800090

素因数分解:

$2^1\times 5^1\times {\mathrm{397}}^1\times {\mathrm{19597}}^1$

素因数の和:20001

約数の個数: 16

約数和(自身を含む): 140400072

約数和(自身を除く): 62599982

約数列:

[1, 2, 5, 10, 397, 794, 1985, 3970, 19597, 39194, 97985, 195970, 7780009, 15560018, 38900045, 77800090]

約数ペア:

[(1, 77800090), (2, 38900045), (5, 15560018), (10, 7780009), (397, 195970), (794, 97985), (1985, 39194), (3970, 19597)]