78414340

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{44053}}^1$

素因数の和:44151

約数の個数: 24

約数和(自身を含む): 166524120

約数和(自身を除く): 88109780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 44053, 88106, 176212, 220265, 440530, 881060, 3920717, 7841434, 15682868, 19603585, 39207170, 78414340]

約数ペア:

[(1, 78414340), (2, 39207170), (4, 19603585), (5, 15682868), (10, 7841434), (20, 3920717), (89, 881060), (178, 440530), (356, 220265), (445, 176212), (890, 88106), (1780, 44053)]