77785515

素因数分解:

$3^5\times 5^1\times {\mathrm{73}}^1\times {\mathrm{877}}^1$

素因数の和:970

約数の個数: 48

約数和(自身を含む): 141898848

約数和(自身を除く): 64113333

約数列:

[1, 3, 5, 9, 15, 27, 45, 73, 81, 135, 219, 243, 365, 405, 657, 877, 1095, 1215, 1971, 2631, 3285, 4385, 5913, 7893, 9855, 13155, 17739, 23679, 29565, 39465, 64021, 71037, 88695, 118395, 192063, 213111, 320105, 355185, 576189, 960315, 1065555, 1728567, 2880945, 5185701, 8642835, 15557103, 25928505, 77785515]

約数ペア:

[(1, 77785515), (3, 25928505), (5, 15557103), (9, 8642835), (15, 5185701), (27, 2880945), (45, 1728567), (73, 1065555), (81, 960315), (135, 576189), (219, 355185), (243, 320105), (365, 213111), (405, 192063), (657, 118395), (877, 88695), (1095, 71037), (1215, 64021), (1971, 39465), (2631, 29565), (3285, 23679), (4385, 17739), (5913, 13155), (7893, 9855)]