19485620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{12653}}^1$

素因数の和:12680

約数の個数: 48

約数和(自身を含む): 51020928

約数和(自身を除く): 31535308

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 12653, 25306, 50612, 63265, 88571, 126530, 139183, 177142, 253060, 278366, 354284, 442855, 556732, 695915, 885710, 974281, 1391830, 1771420, 1948562, 2783660, 3897124, 4871405, 9742810, 19485620]

約数ペア:

[(1, 19485620), (2, 9742810), (4, 4871405), (5, 3897124), (7, 2783660), (10, 1948562), (11, 1771420), (14, 1391830), (20, 974281), (22, 885710), (28, 695915), (35, 556732), (44, 442855), (55, 354284), (70, 278366), (77, 253060), (110, 177142), (140, 139183), (154, 126530), (220, 88571), (308, 63265), (385, 50612), (770, 25306), (1540, 12653)]