20540940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{48907}}^1$

素因数の和:48926

約数の個数: 48

約数和(自身を含む): 65732352

約数和(自身を除く): 45191412

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 48907, 97814, 146721, 195628, 244535, 293442, 342349, 489070, 586884, 684698, 733605, 978140, 1027047, 1369396, 1467210, 1711745, 2054094, 2934420, 3423490, 4108188, 5135235, 6846980, 10270470, 20540940]

約数ペア:

[(1, 20540940), (2, 10270470), (3, 6846980), (4, 5135235), (5, 4108188), (6, 3423490), (7, 2934420), (10, 2054094), (12, 1711745), (14, 1467210), (15, 1369396), (20, 1027047), (21, 978140), (28, 733605), (30, 684698), (35, 586884), (42, 489070), (60, 342349), (70, 293442), (84, 244535), (105, 195628), (140, 146721), (210, 97814), (420, 48907)]