78429860

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{35977}}^1$

素因数の和:36095

約数の個数: 24

約数和(自身を含む): 166218360

約数和(自身を除く): 87788500

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 35977, 71954, 143908, 179885, 359770, 719540, 3921493, 7842986, 15685972, 19607465, 39214930, 78429860]

約数ペア:

[(1, 78429860), (2, 39214930), (4, 19607465), (5, 15685972), (10, 7842986), (20, 3921493), (109, 719540), (218, 359770), (436, 179885), (545, 143908), (1090, 71954), (2180, 35977)]