18505060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1009}}^1$

素因数の和:1156

約数の個数: 48

約数和(自身を含む): 44795520

約数和(自身を除く): 26290460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 131, 140, 262, 524, 655, 917, 1009, 1310, 1834, 2018, 2620, 3668, 4036, 4585, 5045, 7063, 9170, 10090, 14126, 18340, 20180, 28252, 35315, 70630, 132179, 141260, 264358, 528716, 660895, 925253, 1321790, 1850506, 2643580, 3701012, 4626265, 9252530, 18505060]

約数ペア:

[(1, 18505060), (2, 9252530), (4, 4626265), (5, 3701012), (7, 2643580), (10, 1850506), (14, 1321790), (20, 925253), (28, 660895), (35, 528716), (70, 264358), (131, 141260), (140, 132179), (262, 70630), (524, 35315), (655, 28252), (917, 20180), (1009, 18340), (1310, 14126), (1834, 10090), (2018, 9170), (2620, 7063), (3668, 5045), (4036, 4585)]