87764875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:157

約数の個数: 64

約数和(自身を含む): 129392640

約数和(自身を除く): 41627765

約数列:

[1, 5, 11, 25, 29, 31, 55, 71, 125, 145, 155, 275, 319, 341, 355, 725, 775, 781, 899, 1375, 1595, 1705, 1775, 2059, 2201, 3625, 3875, 3905, 4495, 7975, 8525, 8875, 9889, 10295, 11005, 19525, 22475, 22649, 24211, 39875, 42625, 49445, 51475, 55025, 63829, 97625, 112375, 113245, 121055, 247225, 257375, 275125, 319145, 566225, 605275, 702119, 1236125, 1595725, 2831125, 3026375, 3510595, 7978625, 17552975, 87764875]

約数ペア:

[(1, 87764875), (5, 17552975), (11, 7978625), (25, 3510595), (29, 3026375), (31, 2831125), (55, 1595725), (71, 1236125), (125, 702119), (145, 605275), (155, 566225), (275, 319145), (319, 275125), (341, 257375), (355, 247225), (725, 121055), (775, 113245), (781, 112375), (899, 97625), (1375, 63829), (1595, 55025), (1705, 51475), (1775, 49445), (2059, 42625), (2201, 39875), (3625, 24211), (3875, 22649), (3905, 22475), (4495, 19525), (7975, 11005), (8525, 10295), (8875, 9889)]