19691350

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{443}}^1$

素因数の和:589

約数の個数: 48

約数和(自身を含む): 42283008

約数和(自身を除く): 22591658

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 127, 175, 254, 350, 443, 635, 886, 889, 1270, 1778, 2215, 3101, 3175, 4430, 4445, 6202, 6350, 8890, 11075, 15505, 22150, 22225, 31010, 44450, 56261, 77525, 112522, 155050, 281305, 393827, 562610, 787654, 1406525, 1969135, 2813050, 3938270, 9845675, 19691350]

約数ペア:

[(1, 19691350), (2, 9845675), (5, 3938270), (7, 2813050), (10, 1969135), (14, 1406525), (25, 787654), (35, 562610), (50, 393827), (70, 281305), (127, 155050), (175, 112522), (254, 77525), (350, 56261), (443, 44450), (635, 31010), (886, 22225), (889, 22150), (1270, 15505), (1778, 11075), (2215, 8890), (3101, 6350), (3175, 6202), (4430, 4445)]