20038996

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 38808000

約数和(自身を除く): 18769004

約数列:

[1, 2, 4, 19, 38, 41, 59, 76, 82, 109, 118, 164, 218, 236, 436, 779, 1121, 1558, 2071, 2242, 2419, 3116, 4142, 4469, 4484, 4838, 6431, 8284, 8938, 9676, 12862, 17876, 25724, 45961, 84911, 91922, 122189, 169822, 183844, 244378, 263671, 339644, 488756, 527342, 1054684, 5009749, 10019498, 20038996]

約数ペア:

[(1, 20038996), (2, 10019498), (4, 5009749), (19, 1054684), (38, 527342), (41, 488756), (59, 339644), (76, 263671), (82, 244378), (109, 183844), (118, 169822), (164, 122189), (218, 91922), (236, 84911), (436, 45961), (779, 25724), (1121, 17876), (1558, 12862), (2071, 9676), (2242, 8938), (2419, 8284), (3116, 6431), (4142, 4838), (4469, 4484)]