19969020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{110939}}^1$

素因数の和:110954

約数の個数: 36

約数和(自身を含む): 60573240

約数和(自身を除く): 40604220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 110939, 221878, 332817, 443756, 554695, 665634, 998451, 1109390, 1331268, 1664085, 1996902, 2218780, 3328170, 3993804, 4992255, 6656340, 9984510, 19969020]

約数ペア:

[(1, 19969020), (2, 9984510), (3, 6656340), (4, 4992255), (5, 3993804), (6, 3328170), (9, 2218780), (10, 1996902), (12, 1664085), (15, 1331268), (18, 1109390), (20, 998451), (30, 665634), (36, 554695), (45, 443756), (60, 332817), (90, 221878), (180, 110939)]