78725660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{302791}}^1$

素因数の和:302813

約数の個数: 24

約数和(自身を含む): 178041696

約数和(自身を除く): 99316036

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 302791, 605582, 1211164, 1513955, 3027910, 3936283, 6055820, 7872566, 15745132, 19681415, 39362830, 78725660]

約数ペア:

[(1, 78725660), (2, 39362830), (4, 19681415), (5, 15745132), (10, 7872566), (13, 6055820), (20, 3936283), (26, 3027910), (52, 1513955), (65, 1211164), (130, 605582), (260, 302791)]