1278889140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{21314819}}^1$

素因数の和:21314831

約数の個数: 24

約数和(自身を含む): 3580889760

約数和(自身を除く): 2302000620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 21314819, 42629638, 63944457, 85259276, 106574095, 127888914, 213148190, 255777828, 319722285, 426296380, 639444570, 1278889140]

約数ペア:

[(1, 1278889140), (2, 639444570), (3, 426296380), (4, 319722285), (5, 255777828), (6, 213148190), (10, 127888914), (12, 106574095), (15, 85259276), (20, 63944457), (30, 42629638), (60, 21314819)]