19778290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{9743}}^1$

素因数の和:9786

約数の個数: 32

約数和(自身を含む): 42094080

約数和(自身を除く): 22315790

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 9743, 19486, 48715, 68201, 97430, 136402, 282547, 341005, 565094, 682010, 1412735, 1977829, 2825470, 3955658, 9889145, 19778290]

約数ペア:

[(1, 19778290), (2, 9889145), (5, 3955658), (7, 2825470), (10, 1977829), (14, 1412735), (29, 682010), (35, 565094), (58, 341005), (70, 282547), (145, 136402), (203, 97430), (290, 68201), (406, 48715), (1015, 19486), (2030, 9743)]