20640282

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{264619}}^1$

素因数の和:264637

約数の個数: 16

約数和(自身を含む): 44456160

約数和(自身を除く): 23815878

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 264619, 529238, 793857, 1587714, 3440047, 6880094, 10320141, 20640282]

約数ペア:

[(1, 20640282), (2, 10320141), (3, 6880094), (6, 3440047), (13, 1587714), (26, 793857), (39, 529238), (78, 264619)]