18939510

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1657}}^1$

素因数の和:1797

約数の個数: 48

約数和(自身を含む): 49660416

約数和(自身を除く): 30720906

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 127, 254, 381, 635, 762, 1143, 1270, 1657, 1905, 2286, 3314, 3810, 4971, 5715, 8285, 9942, 11430, 14913, 16570, 24855, 29826, 49710, 74565, 149130, 210439, 420878, 631317, 1052195, 1262634, 1893951, 2104390, 3156585, 3787902, 6313170, 9469755, 18939510]

約数ペア:

[(1, 18939510), (2, 9469755), (3, 6313170), (5, 3787902), (6, 3156585), (9, 2104390), (10, 1893951), (15, 1262634), (18, 1052195), (30, 631317), (45, 420878), (90, 210439), (127, 149130), (254, 74565), (381, 49710), (635, 29826), (762, 24855), (1143, 16570), (1270, 14913), (1657, 11430), (1905, 9942), (2286, 8285), (3314, 5715), (3810, 4971)]