639307710

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{353}}^1\times {\mathrm{20123}}^1$

素因数の和:20489

約数の個数: 48

約数和(自身を含む): 1666991664

約数和(自身を除く): 1027683954

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 353, 706, 1059, 1765, 2118, 3177, 3530, 5295, 6354, 10590, 15885, 20123, 31770, 40246, 60369, 100615, 120738, 181107, 201230, 301845, 362214, 603690, 905535, 1811070, 7103419, 14206838, 21310257, 35517095, 42620514, 63930771, 71034190, 106551285, 127861542, 213102570, 319653855, 639307710]

約数ペア:

[(1, 639307710), (2, 319653855), (3, 213102570), (5, 127861542), (6, 106551285), (9, 71034190), (10, 63930771), (15, 42620514), (18, 35517095), (30, 21310257), (45, 14206838), (90, 7103419), (353, 1811070), (706, 905535), (1059, 603690), (1765, 362214), (2118, 301845), (3177, 201230), (3530, 181107), (5295, 120738), (6354, 100615), (10590, 60369), (15885, 40246), (20123, 31770)]