78440090

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{110479}}^1$

素因数の和:110557

約数の個数: 16

約数和(自身を含む): 143182080

約数和(自身を除く): 64741990

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 110479, 220958, 552395, 1104790, 7844009, 15688018, 39220045, 78440090]

約数ペア:

[(1, 78440090), (2, 39220045), (5, 15688018), (10, 7844009), (71, 1104790), (142, 552395), (355, 220958), (710, 110479)]