20055210

素因数分解:

$2^1\times 3^1\times 5^1\times 7^3\times {\mathrm{1949}}^1$

素因数の和:1980

約数の個数: 64

約数和(自身を含む): 56160000

約数和(自身を除く): 36104790

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 343, 490, 686, 735, 1029, 1470, 1715, 1949, 2058, 3430, 3898, 5145, 5847, 9745, 10290, 11694, 13643, 19490, 27286, 29235, 40929, 58470, 68215, 81858, 95501, 136430, 191002, 204645, 286503, 409290, 477505, 573006, 668507, 955010, 1337014, 1432515, 2005521, 2865030, 3342535, 4011042, 6685070, 10027605, 20055210]

約数ペア:

[(1, 20055210), (2, 10027605), (3, 6685070), (5, 4011042), (6, 3342535), (7, 2865030), (10, 2005521), (14, 1432515), (15, 1337014), (21, 955010), (30, 668507), (35, 573006), (42, 477505), (49, 409290), (70, 286503), (98, 204645), (105, 191002), (147, 136430), (210, 95501), (245, 81858), (294, 68215), (343, 58470), (490, 40929), (686, 29235), (735, 27286), (1029, 19490), (1470, 13643), (1715, 11694), (1949, 10290), (2058, 9745), (3430, 5847), (3898, 5145)]