85999960

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^2\times {\mathrm{1279}}^1$

素因数の和:1372

約数の個数: 48

約数和(自身を含む): 198489600

約数和(自身を除く): 112489640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1279, 1640, 1681, 2558, 3362, 5116, 6395, 6724, 8405, 10232, 12790, 13448, 16810, 25580, 33620, 51160, 52439, 67240, 104878, 209756, 262195, 419512, 524390, 1048780, 2097560, 2149999, 4299998, 8599996, 10749995, 17199992, 21499990, 42999980, 85999960]

約数ペア:

[(1, 85999960), (2, 42999980), (4, 21499990), (5, 17199992), (8, 10749995), (10, 8599996), (20, 4299998), (40, 2149999), (41, 2097560), (82, 1048780), (164, 524390), (205, 419512), (328, 262195), (410, 209756), (820, 104878), (1279, 67240), (1640, 52439), (1681, 51160), (2558, 33620), (3362, 25580), (5116, 16810), (6395, 13448), (6724, 12790), (8405, 10232)]