12798160

素因数分解:

$2^4\times 5^1\times {\mathrm{159977}}^1$

素因数の和:159990

約数の個数: 20

約数和(自身を含む): 29755908

約数和(自身を除く): 16957748

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 159977, 319954, 639908, 799885, 1279816, 1599770, 2559632, 3199540, 6399080, 12798160]

約数ペア:

[(1, 12798160), (2, 6399080), (4, 3199540), (5, 2559632), (8, 1599770), (10, 1279816), (16, 799885), (20, 639908), (40, 319954), (80, 159977)]