20169870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{13721}}^1$

素因数の和:13745

約数の個数: 48

約数和(自身を含む): 56315088

約数和(自身を除く): 36145218

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 13721, 27442, 41163, 68605, 82326, 96047, 137210, 192094, 205815, 288141, 411630, 480235, 576282, 672329, 960470, 1344658, 1440705, 2016987, 2881410, 3361645, 4033974, 6723290, 10084935, 20169870]

約数ペア:

[(1, 20169870), (2, 10084935), (3, 6723290), (5, 4033974), (6, 3361645), (7, 2881410), (10, 2016987), (14, 1440705), (15, 1344658), (21, 960470), (30, 672329), (35, 576282), (42, 480235), (49, 411630), (70, 288141), (98, 205815), (105, 192094), (147, 137210), (210, 96047), (245, 82326), (294, 68605), (490, 41163), (735, 27442), (1470, 13721)]