28091150

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:317

約数の個数: 48

約数和(自身を含む): 54559008

約数和(自身を除く): 26467858

約数列:

[1, 2, 5, 10, 25, 41, 50, 71, 82, 142, 193, 205, 355, 386, 410, 710, 965, 1025, 1775, 1930, 2050, 2911, 3550, 4825, 5822, 7913, 9650, 13703, 14555, 15826, 27406, 29110, 39565, 68515, 72775, 79130, 137030, 145550, 197825, 342575, 395650, 561823, 685150, 1123646, 2809115, 5618230, 14045575, 28091150]

約数ペア:

[(1, 28091150), (2, 14045575), (5, 5618230), (10, 2809115), (25, 1123646), (41, 685150), (50, 561823), (71, 395650), (82, 342575), (142, 197825), (193, 145550), (205, 137030), (355, 79130), (386, 72775), (410, 68515), (710, 39565), (965, 29110), (1025, 27406), (1775, 15826), (1930, 14555), (2050, 13703), (2911, 9650), (3550, 7913), (4825, 5822)]