208035640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{126851}}^1$

素因数の和:126903

約数の個数: 32

約数和(自身を含む): 479500560

約数和(自身を除く): 271464920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 126851, 253702, 507404, 634255, 1014808, 1268510, 2537020, 5074040, 5200891, 10401782, 20803564, 26004455, 41607128, 52008910, 104017820, 208035640]

約数ペア:

[(1, 208035640), (2, 104017820), (4, 52008910), (5, 41607128), (8, 26004455), (10, 20803564), (20, 10401782), (40, 5200891), (41, 5074040), (82, 2537020), (164, 1268510), (205, 1014808), (328, 634255), (410, 507404), (820, 253702), (1640, 126851)]