408390216

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{1308943}}^1$

素因数の和:1308965

約数の個数: 32

約数和(自身を含む): 1099512960

約数和(自身を除く): 691122744

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 1308943, 2617886, 3926829, 5235772, 7853658, 10471544, 15707316, 17016259, 31414632, 34032518, 51048777, 68065036, 102097554, 136130072, 204195108, 408390216]

約数ペア:

[(1, 408390216), (2, 204195108), (3, 136130072), (4, 102097554), (6, 68065036), (8, 51048777), (12, 34032518), (13, 31414632), (24, 17016259), (26, 15707316), (39, 10471544), (52, 7853658), (78, 5235772), (104, 3926829), (156, 2617886), (312, 1308943)]