18963140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7129}}^1$

素因数の和:7164

約数の個数: 48

約数和(自身を含む): 47913600

約数和(自身を除く): 28950460

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 7129, 14258, 28516, 35645, 49903, 71290, 99806, 135451, 142580, 199612, 249515, 270902, 499030, 541804, 677255, 948157, 998060, 1354510, 1896314, 2709020, 3792628, 4740785, 9481570, 18963140]

約数ペア:

[(1, 18963140), (2, 9481570), (4, 4740785), (5, 3792628), (7, 2709020), (10, 1896314), (14, 1354510), (19, 998060), (20, 948157), (28, 677255), (35, 541804), (38, 499030), (70, 270902), (76, 249515), (95, 199612), (133, 142580), (140, 135451), (190, 99806), (266, 71290), (380, 49903), (532, 35645), (665, 28516), (1330, 14258), (2660, 7129)]