18313960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{65407}}^1$

素因数の和:65425

約数の個数: 32

約数和(自身を含む): 47093760

約数和(自身を除く): 28779800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 65407, 130814, 261628, 327035, 457849, 523256, 654070, 915698, 1308140, 1831396, 2289245, 2616280, 3662792, 4578490, 9156980, 18313960]

約数ペア:

[(1, 18313960), (2, 9156980), (4, 4578490), (5, 3662792), (7, 2616280), (8, 2289245), (10, 1831396), (14, 1308140), (20, 915698), (28, 654070), (35, 523256), (40, 457849), (56, 327035), (70, 261628), (140, 130814), (280, 65407)]