407787400

素因数分解:

$2^3\times 5^2\times {\mathrm{1021}}^1\times {\mathrm{1997}}^1$

素因数の和:3034

約数の個数: 48

約数和(自身を含む): 949509540

約数和(自身を除く): 541722140

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 1021, 1997, 2042, 3994, 4084, 5105, 7988, 8168, 9985, 10210, 15976, 19970, 20420, 25525, 39940, 40840, 49925, 51050, 79880, 99850, 102100, 199700, 204200, 399400, 2038937, 4077874, 8155748, 10194685, 16311496, 20389370, 40778740, 50973425, 81557480, 101946850, 203893700, 407787400]

約数ペア:

[(1, 407787400), (2, 203893700), (4, 101946850), (5, 81557480), (8, 50973425), (10, 40778740), (20, 20389370), (25, 16311496), (40, 10194685), (50, 8155748), (100, 4077874), (200, 2038937), (1021, 399400), (1997, 204200), (2042, 199700), (3994, 102100), (4084, 99850), (5105, 79880), (7988, 51050), (8168, 49925), (9985, 40840), (10210, 39940), (15976, 25525), (19970, 20420)]