789940

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{311}}^1$

素因数の和:447

約数の個数: 24

約数和(自身を含む): 1677312

約数和(自身を除く): 887372

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 311, 508, 622, 635, 1244, 1270, 1555, 2540, 3110, 6220, 39497, 78994, 157988, 197485, 394970, 789940]

約数ペア:

[(1, 789940), (2, 394970), (4, 197485), (5, 157988), (10, 78994), (20, 39497), (127, 6220), (254, 3110), (311, 2540), (508, 1555), (622, 1270), (635, 1244)]