78727980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1312133}}^1$

素因数の和:1312145

約数の個数: 24

約数和(自身を含む): 220438512

約数和(自身を除く): 141710532

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1312133, 2624266, 3936399, 5248532, 6560665, 7872798, 13121330, 15745596, 19681995, 26242660, 39363990, 78727980]

約数ペア:

[(1, 78727980), (2, 39363990), (3, 26242660), (4, 19681995), (5, 15745596), (6, 13121330), (10, 7872798), (12, 6560665), (15, 5248532), (20, 3936399), (30, 2624266), (60, 1312133)]