77776985

素因数分解:

$5^1\times {\mathrm{11}}^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:111

約数の個数: 64

約数和(自身を含む): 118056960

約数和(自身を除く): 40279975

約数列:

[1, 5, 11, 13, 29, 31, 55, 65, 121, 143, 145, 155, 319, 341, 377, 403, 605, 715, 899, 1331, 1573, 1595, 1705, 1885, 2015, 3509, 3751, 4147, 4433, 4495, 6655, 7865, 9889, 11687, 17303, 17545, 18755, 20735, 22165, 38599, 41261, 45617, 48763, 49445, 58435, 86515, 108779, 128557, 192995, 206305, 228085, 243815, 501787, 536393, 543895, 642785, 1196569, 1414127, 2508935, 2681965, 5982845, 7070635, 15555397, 77776985]

約数ペア:

[(1, 77776985), (5, 15555397), (11, 7070635), (13, 5982845), (29, 2681965), (31, 2508935), (55, 1414127), (65, 1196569), (121, 642785), (143, 543895), (145, 536393), (155, 501787), (319, 243815), (341, 228085), (377, 206305), (403, 192995), (605, 128557), (715, 108779), (899, 86515), (1331, 58435), (1573, 49445), (1595, 48763), (1705, 45617), (1885, 41261), (2015, 38599), (3509, 22165), (3751, 20735), (4147, 18755), (4433, 17545), (4495, 17303), (6655, 11687), (7865, 9889)]