20414392

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{571}}^1$

素因数の和:727

約数の個数: 32

約数和(自身を含む): 39639600

約数和(自身を除く): 19225208

約数列:

[1, 2, 4, 8, 41, 82, 109, 164, 218, 328, 436, 571, 872, 1142, 2284, 4469, 4568, 8938, 17876, 23411, 35752, 46822, 62239, 93644, 124478, 187288, 248956, 497912, 2551799, 5103598, 10207196, 20414392]

約数ペア:

[(1, 20414392), (2, 10207196), (4, 5103598), (8, 2551799), (41, 497912), (82, 248956), (109, 187288), (164, 124478), (218, 93644), (328, 62239), (436, 46822), (571, 35752), (872, 23411), (1142, 17876), (2284, 8938), (4469, 4568)]